Well, I can understand how a fan would not want to be indoctrinated by some extremist political idea everywhere he looked during the event that's supposed to be sport.
However, it seems as though the problem varies from sport to sport, with the NBA being the worst and a perfect example of hypocrisy to boot, whereas some of the other sports are less offensive.
There is one more thing, though. That concerns the impact of late starts to the season, reshuffling of the schedules, required use of substitute players, and so on, all of which seriously devalue the meaning of whichever team becomes the league or national champion. In other words, the games might be worth watching, but the outcomes don't mean much.