It just seems to be a human trait to want to protect the speech of people with whom we agree. For the First Amendment, that is not good enough. So it is really important that we protect First Amendment rights of people no matter what side of the line they are on.
“So when you put the kick in and the other runners go past you, it's game over!”
“Mediocrity is now, as formerly, dangerous, commonly fatal, to the poet; but among even the successful writers of prose, those who rise sensibly above it are the very rarest exceptions.”