"...not willing that any should perish, but that all should come to repentance." 2nd Peter 3:9
Here is the reason I am an elder.
If you look at the letter, it is written to, and I quote, “To those who have obtained a faith of equal standing with ours by the righteousness of God and of Jesus our Lord.”
So, the whole letter is written to those who are believers, not to those who do not believe. Therefore, in chapter 3, Peter begins to council and console those of the faith about the last days. He talks about the scoffers who will try to destroy the faith of those who are weak. So, in verse 9, (and I should at this point tell you that you should look to the whole verse and not just take a portion of it to try and prove a major premise) it says the Lord is not slow to fullfill his promises, and that all of his children will come to him and not perish.
I would caution you, in your incredulity, that the answers are there, and even if you do not understand, be patient and ask. Please don’t assume that just because I am a Protestant and a Calvinist, that I can’t possible understand scripture. Obviously, I can and do. And apparently, better than you.
Considering the totality of Scripture, God certainly will bring all who he pleases (Ephesians 1) to faith and those who are of Essau (Malachi 1) will be judged.
Come Lord Jesus.