Most wouldn't, some still would. The movie (don't have the fortitude to read the book, the movie was bleak enough) seemed to show that there would still be good people in the end. The hard part is knowing who to trust.
Doesn't help now, but when I buy a new phone I make sure it's comparable with a custom ROM. Anytime I'm using a stock android (or iOS) phone it's unbearable after so many years of custom ROMs. So hopefully you're in need of a new phone soon.
Yeah, you'd have to be a total idiot to believe something as ridiculous as that.
Plus, everyone knows this is how the earth really is: