Ever been in a situation where a bunch of girls in a scene start giving you weird looks, ignore you, whisper to each other in front of you, and freeze you out of anything important, all because you said something that made someone feel "uncomfortable"? That's what's happening to Jason Aldean and anyone who gets cancelled. A bunch of people (mostly women and Jews) who get the "ick" about someone and decide they can't hang around the little friend group they call the economy of the United States of America anymore.
Sometimes these situations are resolved when a mean girl pokes a psycho girl a little too many times and they end up brawling in the parking lot where the psycho always wins. It's possible we need a similar solution.
Yes and no. The classic jock has been replaced by the preppy type in 6 different social clubs so he can get a good playing job that his tiger mom approves of. There was even a book about that phenomenon and the changes in education from the 80s onwards. That said, lots of former jocks fit the stereotype of getting fat and following the rules blindly. Normies gotta normie. So, yes and no. The old school dudes who played for fun and then went on with their lives don't really exist, at least not in large numbers.