What do you propose instead?
The insidiousness that comes from controlling speech is far greater than the insidiousness of a small group of assholes who say mean things. The short-sightedness of many continues to astonish me.
what if this is a part of the "ridiculing and ignoring of racists"?
Ignoring them does not work, and only emboldens them. Ridiculing them online seems to act mostly like feeding a troll.
Second, so freakin what?? So 0.01% of the population says mean and ugly things - so what? It's very, very easy to avoid and ignore it. Meanwhile, policing speech is not only going to obviously open Pandora's box in general, but it will probably cause more people to be racist.
I don't know what is true?