I closed my Facebook account years ago, but is not Facebook alone, Youtube keeps recommending me far right extremist channels, I'm a POC immigrant, is that just bad luck? I'm the only one?. Is f*cking cruel at this point.
If you do nothing, they recommend what is generally popular.
If you watch or engage with content, you see recommendations for similar content to what you have watched recently.
If you "like" or "subscribe" to channels, you see more of that type of stuff.