There's an ideology created now, coming out of campuses, where one of the purposes is to shut people up who disagree with their views. The legitimacy of your views is based on your perceived victimhood identity, with indigenous/LGBT/visible minorities given more legitimacy and white men the least. Not based on your argument, but based on your perceived identity. If you're white they'll tell you to check your privilege or that you're "whitesplaining", or if you're a man it's "mansplaining". Safe spaces, trigger warnings, microaggressions. The PC police are everywhere. Disagree with the mainstream paradigm and you're labelled a racist islamophobe homophobe etc. (though some legitimately are) This isn't just a few bad seeds who try to use a heckler's veto to shut people up.
I'm sorry but I don't have faith that these polls capture what's happening on campuses.