@milkman76 @majorlinux The problem is that you cannot see everything that's posted on other instances. Here on my instance, I don't see a lot of stuff. However, on the mastodon.social instance, I can see much more. It's in between that kind of fragmentation that racists hide. They also send others private @'s which no one else can see.
Find a black here who speaks out about anti-black racism on the regular, then check out their replies on their own server instead of your instance. It's there.