What happened during start of pandemic is WHO and big tech meeting up to discuss the threat of an "infodemic". Companies such as Google, Facebook, and Twitter, agreed to suppress amateur takes on COVID. Mentioning COVID would vastly decrease your reach if not a verified public health source. It would get you demonitized, to not incentivise low-quality clickbait COVID videos. Of course, these algorithms are way more aggressive and produce more false positives (ads removed for just mentioning COVID without giving false cures, like happened here).
It has nothing to do with white or black and race. Just the nitwits at WHO and big business mismanaging crowd intelligence during a pandemic. WHO said masks do not work. Youtube banned users for mentioning vitamin D defiency and COVID. But they meant it well...
Surely effectively all chess videos, banned or not, have those words in them? This all feels pretty speculative.