Let's use an example reducto absurdum, even though I contend we were already there.
If I say I should be allowed to rip the heads off of children on a whim, just because I am 'in the mood,' there is no one who would suggest that discussing such behavior on the merits would have value. I would have revealed, pre-hoc, that I am beyond civil reasoning and that the only actually civilized response is containment and prevention.
So, no, I will not pretend respect for advocates of racism. I will counter them with as much of the savagery they deserve as rules and medium allow, and advocate that others do the same.