You may be right. It may not (yet) be possible to have a sincere public discussion that isn't drowned out by PC ideologues on one side and racists and xenophobes on the other. It's not always easy to tell who's who, either: sometimes uttering "what you can't say" is an act of courage, sometimes it just means you're an asshole. Intentions and emotions are part of this, and they're harder to read outside the personal sphere.