Atheists, tell me, a Roman Catholic: why should I become an atheist?

[Asmodee]

I had a similar experience with a similar outcome.  I finally came to the conclusion that the idea of an all-loving god who loved me more than I was even capable of loving would not lay down one right path, allow Satan to lay down tens/hundreds of thousands and then simply expect me to find the one right path on my own with the intention of lighting me on fire for all eternity if I were tricked into choosing wrong, as the Bible clearly says most people searching will be, was a massively idiotic idea.

I was taught that God doesn't give us undeniable proof of his existence as a test of faith...those with righteous minds would find him. Joker and any other Catholics, what are your thoughts on this?

That is not backed by the Bible, though.  When Thomas, who walked with Jesus, saw his miracles, heard him say that he was coming back in three days and then looked upon his face STILL did not believe Jesus didn't quote any bullshit about not giving him undeniable proof as a test of his faith.  He gave him undeniable proof.  The idea that the same God who had Moses have a spell fight with Pharaoh's wizard, destroyed Jews, Cities and the entire world, took a man into Heaven bodily in a fiery chariot, healed the sick, turned water into wine, walked on water and raised the dead somehow became a mysterious goth kid who sits in the corner just letting you wonder about his power is ludicrous.  This claim simply does not match the many descriptions of how God operates found in the Bible.  It is purely a modern creation designed to explain away the current absence of magical working rather than confront the reality that miracles as described in the Bible simply don't happen, so they probably never happened.