I dunno, Mexico is a pretty great place. You could do a lot worse than Mexico. Many people have moved there “temporarily” and then never went back to their native country.

The lifestyle is legit. No one requires you to go to the famously sketchy parts.

Still, you're giving up on your whole life for an hypothetical event that's been prophesied since the 50s. If you wanted to move in the first place or had family there why not, but if the sole reason is fear...

Imagine leaving the US for Mexico in 1962 because the "cold war is about to go warm"