I will have to break this up. The more important part will be the part that covers the time, times and half a time...
So we see it comes from the vast number of people as it rises from the sea, and "sea" in the Bible, symbolizes "peoples, multitudes, nations, and tongues", verse 1.
[Verses removed simply due to length of comment. The point you made is what is dealt with here.]
Yes, so it is a person. Notice how this person speaks great things and blasphemies. Given that we know this to be a person who comes out of the world, it should be obvious that we aren't dealing with thousands of years, or even hundreds. What are we given? Time, times and a half, the middle of the week to the end of the week, and 42 months. Considering it is a person, the weren't alive for thousands of years. Going with 3 1/2 years is the only interpretation that makes sense given that even Revelation states that it is a person, a human being. God was very clear when He declared the span of man's days to be 120 years.
Note how he blasphemes God, his name, his tabernacle, and them that dwell in heaven. This is important when looking at the 70 weeks of Daniel as well.
We see in Revelation 13 verse 2, it is the composite of the four beasts in Daniel 7:1-7...
1 In the first year of Belshazzar king of Babylon Daniel had a dream and visions of his head upon his bed: then he wrote the dream, and told the sum of the matters. 2 Daniel spake and said, I saw in my vision by night, and, behold, the four winds of the heaven strove upon the great sea. 3 And four great beasts came up from the sea, diverse one from another. 4 The first was like a lion, and had eagle's wings: I beheld till the wings thereof were plucked, and it was lifted up from the earth, and made stand upon the feet as a man, and a man's heart was given to it. 5 And behold another beast, a second, like to a bear, and it raised up itself on one side, and it had three ribs in the mouth of it between the teeth of it: and they said thus unto it, Arise, devour much flesh. 6 After this I beheld, and lo another, like a leopard, which had upon the back of it four wings of a fowl; the beast had also four heads; and dominion was given to it. 7 After this I saw in the night visions, and behold a fourth beast, dreadful and terrible, and strong exceedingly; and it had great iron teeth: it devoured and brake in pieces, and stamped the residue with the feet of it: and it was diverse from all the beasts that were before it; and it had ten horns.
When you consider what is said about the beast above, it is actually analogous to the fourth beast of Daniel, which had no description other then that it was dreadful and terrible, and strong exceedingly. So it is possible that the fourth beast was a composite of the others that Daniel could not/did not describe in beastly terms as the other three beasts. These four beasts are God's view of Nebuchadnezzar's greatness and the four great empires of Earth. The statue is man's view of the greatness of Nebuchadnezzar and the strength, beauty, and awesomness of man's great empires.
The gold head is Nebuchadnezzar. What is said of the first beast? "I beheld till the wings thereof were plucked, and it was lifted up from the earth, and made stand upon the feet as a man, and a man's heart was given to it." This is a direct prophecy of what God did to Nebuchadnezzar for exhalting himself as a god. God made him human. God humbled him.
The bear raised on one side. The Persian part of the Medo-Persian Empire was greater then the Medes. And the statue has two arms, which speaks to a two part empire. The Persians and the Medes.
The beast that is like a leopard with four wings of a fowl speaks to the swiftness of Alexander establishing his kingdom, the Greek empire that followed the Medo-Persian Empire. And the four heads? When Alexander the Great died, the empire was divided amongst his four generals.
Then you have Rome, the iron legs. Two legs. The Roman Empire was two parts, the Eastern and the Western part. The Eastern Roman Empire did not cease until 1453 AD. We haven't even gotten to the iron and ceramic of the feet and ten toes.
The resurgence, rebirth of the Roman Empire with ten toes. Back in the 1980s, it was believed to be the Common European Market or something like that because the Roman Empire was in Europe, and by the early/mid 1980s, it was made up of ten European countries.
The dragon (or devil) gives it power and authority as we also see back in verse 2 of Revelation 13, "and the dragon gave him his power, and his seat, and great authority.".
It receives a deadly wound, verse 3, "as it were wounded to death" and we see it is healed, "and his deadly wound was healed:".
It is a strong political power, verse 7, "and power was given him over all kindreds, and tongues, and nations.".
It is also a strong religious power, verses 4, 8, "and they worshipped the beast, saying, Who is like unto the beast? who is able to make war with him?", "And all that dwell upon the earth shall worship him".
It is guilty of blasphemy, verses 1, 5, 6, "And he opened his mouth in blasphemy against God, to blaspheme his name, and his tabernacle..".
It wars with and overcomes the saints, verse 7, for "forty and two months"/1260 years, verse 5.
How does this beast, who you agree is a person, live for 1260 years? When you read what is said of the ten horns, it is again clear that it speaks of people. And Revelation makes it clear that the beast itself is a king, is a person.
Revelation 17 "7 And the angel said to me, “Why [
g]do you wonder? I will tell you the mystery of the woman and of the
beast that carries her,
which has the seven heads and the ten horns."
"8 “The beast that you saw was, and is not, and is about to
come up out of the abyss and [
h]go to destruction. " What does that mean, come up out of the abyss? Why is it at this time that this beast is about to come up out of the abyss? That speaks of demonic power. Demons and Satan. It speaks to the unveiling and presentation of the Antichrist in full view, in full demonic presentation/power. Satan, through the beast, is about to go off on the blasphemous tirade that Daniel speaks about. What is the greatest blasphemy a man can commit? Claim to be God. Hence the priests and leaders saying Jesus was being blasphemous because only God forgives sin, or when they say that Jesus claimed to be one with God, that is, that Jesus is God. (He is, but they didn't believe it, so they brought up accusations of blasphemy.)
"The seven heads are seven mountains upon which the woman sits, 10 and they are seven kings; five have fallen, one is, the other has not yet come; and when he comes, he must remain a little while. 11 The beast which was, and is not, is himself also an eighth and is
one of the seven, and he goes to destruction."
Rome has seven mountains. Note that here the beast is clearly stated to be a person, an eight king, and one of the seven. So, again... Roman, or one from among the revived Roman Empire. And he goes to destruction, just as the one mentioned in the middle of Daniel's 70th week goes to destruction.
Daniel 9:27 "...but in the middle of the week he will put a stop to sacrifice and grain offering; and on the wing of [
af]abominations
will come the one who [ag]makes desolate,
until a complete destruction, one that is [ah]decreed,
gushes forth on the one who [ai]makes desolate.” Due note that the time from when the abomination of desolation occurs here, and the destruction gushes forth on the one who makes desolate is a time, times, and half a time. 42 months. 3 1/2 years.
"12 The ten horns which you saw are ten kings who have not yet received a kingdom, but they receive authority as kings with the beast for one hour. 13 These have one [
j]purpose, and they give their power and authority to the beast."
So the one beast is basically the new Emperor/Caesar as the ten kings in the revived Roman Empire give their power and authority to this one king. This is all important. More in the next comment to finish this out.