Very naive.
They live, by design in a privileged bubble, their success is getting picked in the team they end up.
Money is not usually an issue, they owe nobody in the crowd a thing despite the outrageous levels of conceit to the contrary we see in here.
The only reason to boo so repeatedly is for self gratification, and do you seriously think these guys hear it and go, ‘Hey, maybe I am slow talentless *******. W@nk3r after all, and must try harder’. It just results in a why bother? attitude, something we strangely see as evident over the last few years.
These guys spend their lives having smoke blown up their asses by agents, so honest self reflection is really not on the table.