Did you notice the following sentences in my entry?

"Are you annoyed at a specific opposite-sex couple who are millionaires and have more privileges than you in practically every imaginable way? Fine, but then why don't you complain about all their privileges, instead of just complaining about them having the audacity to get legally married when you and your partner can't? Why don't you ever mention anywhere that you're excluding from your wrath the numerous opposite-sex couples for whom the tax and health insurance benefits of being able to get legally married don't half make up for the economic disadvantages they have that you don't have?"

There are many kinds of privilege. If a person has more privilege overall than the huge majority of the world, I feel it's fair for a person who has less privilege than them (either by default, or due to having given up some of their privilege already) to criticize them for having too much privilege. What I object to is focusing on a specific privilege to complain about and acting like even people who have far less privilege overall than oneself, whose decision to get married doesn't half make up for all the other privileges thet're deprived of that you aren't, are somehow worse than oneself.

I also think marriage privilege itself is an incredibly stupid privilege to focus one's complaints upon due to the fact that in opposite-sex couples who do refrain from getting married, it's the woman or the poorer member of the couple who's likely to be giving up the most privileges, whereas the man or the richer member of the couple may actually profit greatly from your efforts at bringing his spouse down to your level of privilege (or quite possibly even lower than your level of privilege, because a housewife who gets abandoned by her partner and has no marriage to protect her economically will be disadvantaged to an even much greater degree than a lesbian who never gave up her job to raise kids in the first place).