Good gosh. Those people are deranged. I use that one all the time to illustrate the lunacy of the Left.
Was he actually part of that organization, or were you using it to illustrate who they are?
I put 2 and 2 together. The title of the article says he was a co-founder of Earth First, and in the youtube video it starts saying those people are members of Earth First at the 15 second mark.