If everything has a purpose then evil doesn't exist

[Mister Agenda]

So sin is a virus God cannot defeat unless we go through some kind of rigamarole?

Less of a does not, more of a will not. as the virus serves a purpose of separating those obedient and willing to serve god from those who do not/are not.

I get why a human doctor would need me to agree to take a vaccine, but I don't get why such a consideration would apply to an omnipotent being.

because God only wants those in Heaven who truly want to be there. If you can't be compelled to take said vaccine, then maybe Heaven is not for you. Not everyone is supposed to be or will be saved.

I truly want to be in heaven, if there is one, and the alternative is hell, if there is one. The problem is, I don't think they're real. Not the Buddhist or Muslim versions either. The NT assumes hell, but it never lays out evidence or reasoning to support its existence. It didn't have to, it was a given that people in the region believed in the hell that Jesus described, or at least Hades as the Romans believed. I don't want to suffer forever, but I can't think of a good reason to believe anyone will. I can see why someone raised to believe it would; but I don't see why someone who never heard of it would find it plausible.