People like Michael Jordan and Wayne Gretzky transcend generation to generation, they aren't as cowardly as today's celebrities.Could be, I don’t bother to try and sleuth that.
I would have to say the obsession with 80’s and 90’s celebrities is weird but honestly I would think a bot would bias towards more modern ones simply due to the training materials being more available.
Any modern celebrity is afraid of cancel culture. Supporting Trump publicly is a kiss of death and socially unacceptable, I know for the fact that most athletes are closet Trump supporters, it's just that they won't say it out loud due to fear.
Back in the 80s, most of the athletes would go to Reagan-Bush or Bush-Quayle rallies, even some of the minorities.