We need only look into a mirror.
$1:
This is extremism and social engineering run amok - nothing more.
$1:
These students have big ideas as to what's right and wrong but lack the maturity to keep things in perspective. They're so eager to raise a stink about anything.
and
$1:
These students have no idea as to what is "right" and "wrong" - they're intellectual peons, afraid of discourse and dissension and they'll resort to censorship...
For years 'schools' and teachers have replaced parents. It was parents who passed on their values and a sense of whats right and whats wrong. Its not been such for a very long time and we are simply (and have been for quite a while) reaping the rewards.
This is not to say all have warped ideas on the subject. Just that their are a great many who feel it is their right <insert 'whatever' here>.
Now, it's all about me me me, instead of us. It's all about pointing out our differences instead of celebrating our similarities. And if we disagree (and sometimes, that's all we can do), we are unable to simply agree to disagree. We can no longer 'settle our differences', we have to have the entire world agree with us.
Let me be clear, I am
not 'blaming' schools and teachers. Perhaps its not so important to lay blame at all.
Can't wait until these 'students' get into the real world.

meh... can't we all just get along?