It’s actually not as grave of a threat as you make it out to be. Short of any of those things mutating then we’ve already seen the worse case scenarios. What we found is they actually don’t wipe our humanity. While the results aren’t pretty an unvaccinated population doesn’t wipe out humanity and when you go jumping to wild extremes it makes it really hard to convince people that you have a firm realistic grasp of the situation. If you are trying to convince someone to get vaccinated then you lose them the second you go down a route they know isn’t likely. They also are just going to assume you don’t actually know what you are talking about.

Humanity faces far greater threats then a few people not being vaccinated. And when you get down to it that’s what it currently amounts to. In a 1st world country the vast majority will get vaccinated and the end result of a few not being vaccinated is not ideal but it doesn’t pose anywhere near a grave threat to humanity.