I think athletes do realize that, but that doesn't mean they have to like it. Sure, many athletes are entitled, but so are many fans. I've been a Yankee fan all of my life. I attended my first Yankee game in 1961. With that said, I can't stand the Yankee fan base with their entitlement attitude. The most spoiled fan base I've ever encountered in my life, especially, those that have been fans for only the last 20-25 years. When Yankee fans booed Mo Rivera and Derek Jeter during a rough patch, both players were having in a particular season that was the last straw for me in regard to how I feel about my own fan base.Players deserve to be booed when they’re not hustling, but otherwise I kind of agree with you
that if a player is obviously trying, or trying too hard, it’s unfair to boo poor performance. Whether booing is right or wrong, fair or unfair, some clueless athletes have to realize that criticism and unrealistic expectations is a part of their job and their comfortable paychecks- my take.