I was thinking of high civic engagement by racists, eg fascist activists, anti-immigrant activists.

Anyway, I think I see what you mean by implicit now -- not speaking up for abuses against women of group A that one would speak up if were of group B implies racism toward A?

I don't think the barely implicit racism of immigration restriction is the right way to address, not least because I don't think abuse is any more tragic because it happens in a geography where it usually is considered abhorrent vs one where it is relatively common.