In a parody of radical Left-wing nut-bag Chomsky, this is called manufacturing offense. Unable to mount a counter-argument, the only tactic is to ignore the "heretical" assertions as childish.

As the Sex Pistols Johnny Rotten responded to a reporter when asked why he dumped a cup of soda from a hotel balcony on to the head of a passer-by "at least he felt something." It is too bad some people are so comfortable in their insularity they refuse to think or discuss something.