In my observation they are usually at the fringe and therefore not difficult to ignore for me. I personally don't find these slurs productive to conversations (obviously) but they will continue to exist just as every manor has a dungeon.

Having said that, what can we do? Ban and deplatform them? As long as no one is engaging in witch hunt or inciting/mobilising for violence, I feel they should be left alone. We can always not vote them and supersede their content with our hopefully more productive ones. :)