Two consenting adults, including relatives?

[Esquilax]

It's ok
I understand why you need to try and help out the dude who mangled his SSM argument.

No, you mangled it in your desperate rush to create the most dishonest strawman possible. Do you think that people can't go back a few pages and see what Jacob's actual argument was? Is it that you believe your pathetic distortion is the only thing left on the forums?

Jacob argued, as I did in brief, that one must take each case as its own debate, and so pretending that gay marriage naturally leads into a requirement to allow bestiality doesn't make any sense. The argument was that these were separate debates to be had in their own time, and that allowing one thing doesn't require allowing another, because the other issue will come with its own set of contentions to debate.

You, as you so often do, decided to take the lowest road you could, and crowed "aha! So gay marriage isn't really marriage!" which was not at all what was said.

For a guy who bitches so shrilly about people supposedly strawmanning you, you certainly have no issues doing it to others.