" All of us nonbelievers will become psychopaths."
In a manner of speaking that could be true. That is, those who remain in such a state until death will end up that and worse. That is exactly a part of what motivates believers to spread the good news: to bring others to salvation. It is the spiritual equivalent of telling people on a sinking cruise ship where the lifeboats are, yet some of them insist that the boat is fine and they refuse to leave the blackjack table.
Time will tell which group is right, but I hope you at least understand their motivation to talk about the lifeboats - and many of them have been to the lower decks and observed the water rising.
> Time will tell which group is right
Crom worshippers. They'll be back.
Is salvation a gift from God, or is it a contract?