What you are not getting is that marriage is a word/term. It is only a word/term. Marriage has many meanings, and until people (you, for example) realize this, they are only going to succeed in making illogical and bigoted arguments that offer nothing regarding solutions and everything about unnecessary division.
See, I can, and have, offered proof of this. You have offered proof of nothing that would contradict it either. Sorry... *shrugs*