Then articulate that. Because frankly when someone makes a claim like that and all you can respond is with insults it makes me think maybe they're right. So at this point you have less credibility than that guy does.
On a personal level I'm curious what your arguments would be because I don't frankly know what to make of David Hogg. Other than his stance on gun control, which do not endear me to him, he seems a little bit vague to me.