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.
“Mischief springs from the power which the moneyed interest derives from a paper currency which they are able to control, from the multitude of corporations with exclusive privileges... which are employed altogether for their benefit.”