Superman, Captain America, and Spider-Man strive to be an ideal hero, even if they fail to match their own ideals in some stories. Anti-heroes are interesting, but not exemplars for us as individuals to better ourselves. I enjoyed the Deadpool films, but Wade Wilson is no role model.
Tate is absolute trash, and few Hollywood actors offer a good example in their public lives. Politicians are scum. Families have splintered in recent decades. Religion has faded, and while many issues exist there, it did set a standard for people to follow. Now people get moral guidance from "influencers" with no foundation of their own.
I am not a fan of religion, but it did offer a lot of the needs of humans in some form - community, morality, support, participation etc. We haven't evolved out of our needs, so we put them into places that feel like they offer the same, but they are cheap substitutes that make us ill.
And now we have divisive politics taking that place in the US. It's a lot more dangerous, too.
Same all over the world. populism over policy.