Express frustration towards the other person's perceived negative and biased opinion, and accuse them of wanting racists to act out in order to further their own political agenda.
Your axe-grinding will never stop, will it?  You just can't help but try to find a negative in everything, can you?  This is precisely why we conservatives tell you that Liberalism is a mental disorder.  Seriously, you need help.
Ignoring them IS doing something, and something far more effective than protesting and sensationalizing.  Not employing racists like this and marginalizing them IS doing something.
I never suggested that we should ignore law-breaking.  By all means, if these racists commit criminal acts, punish them to the full extent of the law.  No, your misguided assumption is wrong just like every one you make.
But I can't help but feel that you WANT racists to do the stupid things racists do because you crave controversy.  You need to have victims and oppressors for Liberalism to survive.  It gives you a purpose, however sick and twisted it is, to stir up animosity and to turn one person against another, to assign false motives to those with whom you disagree.  Yer sick.