Earlier quoted context omitted.
We ignore the kkk. No, I decry the KKK. And the FBI infiltrated the KKK, and private lawsuits have largely bankrupted the KKK. The KKK gets plenty of push-back, and deserves every bit of the push-back it gets.
We should ignore the KKK. Obviously there will be times they will step out of simply just speech and opinion, and for that they should be punished. If they act out on their hate and prejudice that is. But if all they are doing is expressing an opinion then let them, for it is not for you to judge who shall have the right opinions in this country. If you disagree, simply ignore them, for truth shall hold them accounta…
Allow me to disagree openly with that opinion by posting a reply. :) The KKK opinions are so disrespectful to my fellow citizens, so factually mistaken, and so verified historically as causes of violence and social backwardness that I don't just ignore them. I dispute wrong opinions such as those of the KKK. (And I dispute similar opinions posted here on HN, even at the risk of my comments being downvoted, because it is important to provide refutation of such opinions for onlookers.)
About your legal advice, you are mistaken. The current law on free speech in the United States is precisely designed to allow (and, indeed, encourage) open and continual refutation of mistaken ideas on public policy. That is the whole point of the American experiment in free speech.
About your parenting advice, as the father of four children I call on you to provide references to your sources if you expect to convince me that you have useful advice on parenting. Who did the research, and how?
http://norvig.com/experiment-design.html
Are you a parent yourself? How many child-years of parenting experience do you have?