Reading the Bible through the lenses of the Reformation Study Bible, the Confessions of Faith, and TULIP leads one to a particular belief; yes?
Only if they believe it.
Wouldn't it be better to have full knowledge of what one doesn't believe, instead of just rejecting it without any knowledge? What if it is the truth and what you already believe isn't? Or is God's truth not important to you? Is THE truth not important to you? Or are you satisfied with what you have because it is pleasing to you and makes you feel safe, so that you can go blithely on without ever thinking too deeply or actually seeking the God who is? That is fine as long as one truly trusts in the person and work of Jesus for salvation. It is a little skewed imo if the majority of that trust is based on their deciding to trust Him. And greatly limits their ability to actually defend their faith---they simply don't have the tools to do so. As we see again and again on the forums. But nevertheless, God saves who He will in spite of that, for it is belief in the right person, Jesus, and what He did, that reconciles one to God and Him to them.
Now I do not say that as though I were saying Reformed theology is that truth. I happen to think what is in it is consistent with the Bible and most important with God who tells us in no uncertain terms from Gen 1:1 on who He is, this God we are to worship. Any other god, one of my own design, would be idolatry to me. And I have stood on both sides of the isle, 23 years on the side you stand on, and on the side where I now stand since 2005. And I have to say, and I do not take credit for this, for I did not make me, that long before I ever heard the shepherd's voice and followed Him, I desperately wanted to know THE TRUTH. It seemed mandatory to me in my philosophical way of thinking that there had to be such a thing. And I knew it when "I found" it. And I knew it was in the Bible. That the truth is God and the Son Jesus.
For a long time. 23 years, I was not hearing and being taught deeper truths but only the surface of things, and much of it I could not reconcile with what I read in the Bible. My hunger to know God, to hear about God, not even knowing fully what I meant we don't know what we don't know, was a deep cry within me, as deep calling to deep. And that was when I was first introduced to Reformed theology, something completely foreign to me, but I recognized instantly that it was about God, who He is, and Jesus His Son, and the rest is history.
Would that be your experience if you studied Reformed theology? I have no way of knowing that, I only know we only have what God gives us. He is the only One who has it to give. My point is that I desire truth, whether I like that truth or not. And unless that is a person's desire they will not listen to or hear anything that they do not already believe and are satisfied with.