There isn't anything inherently wrong with having a properly built bunker with all the food and stuff you need.

I agree there are a lot of right wing nutjobs with more guns than gardening tools, but you're being pretty uncharitable to a very broad hobby that includes just as many hippies and leftish people ready to help their local communities.

Preparedness is something everyone should have, so that when the store shelves empty at the start of the pandemic, no one is concerned about their lack of toilet paper or feeding their kids.