Where was this God when millions of Jews were killed? Let it go. It was a coincidence, and they have happened before both ways. I have heard many missions stories both ways. Ie, the source is not the issue.
I did not dismiss Isaiah, and another is even more telling: ch 10: even though Israel tallies as high as the sand of the shore, only a remnant will be saved. In ch 49, he doesn't even sound interested in the remnant! He wants the Servant to be a light to the nations.
We all want God to stop evil, but that is not our concern; only that he judged evil in the body of Christ Jesus and wants people to believe on that act of justice and be saved.