Well you can’t control what other say, the only option is to ignore or tell them they’re rude.

And I’d argue an extreme position isn’t necessarily morally repugnant, and likewise racism is necessarily extreme. For example usury is a Christian sin, and having that crime abolished would achieve a moral good but it is an extreme position.

Btw I haven’t looked at many of your comments, so I can’t work out whether you’re a centrist (who calls positions outside the overton window extreme), or if you’re broadly a left-liberal euphemistically calling racism extreme.