In a nutshell here is the problem with society...
If someone says something astonishingly stupid, and you point out their stupidity, then you are mean.
And if you tell them they are really brave for being so astonishingly stupid and voicing their idiocy, then you are nice.
We are taught (via Bambi, and other less hand-drawn sources) that if you don't have anything nice to say, say nothing at all.
Result: The only voices we hear are the IDIOTS.