Isn't he more complaining about capitalists participating in capitalism until other people make more money than them, and only then becoming anticapitalists? It's not a group that has always been anti-Facebook. It's a group that has been on the inside pushing Facebook for a long time until other groups co-opted Facebook to push an agenda they don't like. Now they want Facebook to silence those people.
They're closer to crony-capitalists who like capitalism as long as it benefits them, and then want to pass regulations keeping everyone else out.