Oh, no doubt.
I have no issue whatsoever with using blocklists as a means of fencing off and quarantining obviously racist/sexist/bigoted language; and you run your instance as you see fit.
But, when you abuse that power to collectively unite for a petty vendetta against an isolated group just to smear them for crimes they did not commit, then don't run under the race card to justify your acts.
Simple. Basic.