People have predicted the end of the world since the beginning of the world (for humans, at any rate). While we can't ignore the larger world the real Apocalypse is losing your family. What use it it to gain the world but lose your soul?

I agree with being prepared, but if you've reached the point where involvement with politics/theories/ideas threatens your family life you must make a choice as to which you value most.

You will protect the ones you love best by being there. Do what you must to make this happen. If you push them away that won't happen.

Best of luck with your personal travails.