[scintill76]

Even if I don't agree with all of this, it's at least a good explanation of why I find "marriage equality" distastefully propagandistic. If people waving that banner truly wanted "marriage equality" they would be fighting for normalizing marriage laws across the whole nation (marriage age and other requirements like relatedness as you mentioned), polygamy, etc. If they wanted to extend the logistical benefits of marriage (tax breaks etc.) to more people, they could fight for marriage between people that were doing it purely for the legal benefits.

Just call it "fighting for same-sex marriage", because that's what it's mostly about. "Marriage equality" feels like trying to sway the listener by giving a deceptively broad impression of the aims of the movement.