Here's something I learned in school a long time ago:
"With every right comes the responsibility to protect it for others."

Fundamentally that sounds reasonable to me.
If anyone disagrees, say so!
Mainly though I want to take this as a given and ask the following:

What does it mean to freedom of speech?
What is the responsibility?

To me there are two options. Either every individual must exercise discretion and not say things that others would want to take away his free speech for, or people must group together to protect the right of any individual to all rhetoric, no matter how opposed to their views or how distasteful it is.

What does the almighty sift think?