Preach. I've been toying with posting something similar but you hit the nail on the head. I couldn't agree more.
I realize we are currently living in a highly politicized environment but I simply cannot patronize a site after reading that editorial. I vehemently disagree with it, and while some may view it as a small or insignificant action to leave the site, I am trying to do whatever I can to support progressive views currently. I want to be on the correct side of history.
I will no longer be posting or visiting. Assuming I will get banned so it's been fun all.