By your reasoning, 99.9% of people use awfully insecure OSes on desktop and servers. And yet, the world hasn't collapsed. My bank account is not hacked regularly, too (actually, not at all).

This is a personal anecdote and you are making up an absurd conclusion. No one said things would collapse. Security can be evaluated objectively, and the better the security, leads to fewer instances of exploitation. I'm certain the actual data around InfoSec would support that idea.

My point was about the word "awful", or, as many GrapheneOS supporters say here, "atrocious" security. This is definitely an overstatement.

Otherwise, you're not wrong.