i think it's cool and valid if people want to use it, but personally i've never felt really offended (for lack of a better word) about the slurs in homestuck, even though multiple of them are ones used against me? i just thought the jokes were funny. though perhaps growing up in a very red state desensitized me lol.
but yeah not wanting to see slurs is totally okay, and honestly doesn't change the story or reader experience in my opinion