I think you and I are thinking along the same lines.

I particularly like "Sexual liberation is essentially used as a means to politically control people into thinking that they're excercising their "freedom" by jacking off to porn."

This is also true of legalization of weed in my mind. I have no problem with legalizing weed; if alcohol is legal, weed appears no more harmful than alcohol. But motivation matters. Why are they offering this freedom? I would argue it's the same reason. People feel they are "free" because they can smoke weed, when actually TPTB see it as a wonderful distraction so people will lose themselves in unproductive freedoms like this instead of asking why the world surrounding their weed-induced bubble is closing in on them daily.