That doesn't make any sense to me. Marriage isn't middle class, since the poor straights and rich straights, as well as the middle class straights all have the right to marriage. It's not about getting married, it's about having the right to and the option to like everyone else. If you want to "live in sin" by all means do so, but do it because you choose to, not because you don't have the right to live any other way.