Imo stating "AfD is Nazi party 2.0" is very oversimplified. I agree there are some Nazi supporters there but most are people with anti illegal immigration views which doesn't mean they are Nazis.
The issue of death fear was historically(almost allways) solved by religion. Many people in the last century chose to be de facto atheist, which of course has its advantages but like the former also disadvantages. There is no solution to this phenomenon otside of religion.