"Why is that, do you suppose?"
Because marriage is illegal, you dumb fuck.
Go ahead, someone send a nice tactful e-mail to this drooling moron, laying out the facts showing marriage has been criminalized. See what happens. I'll wait.
("But I like being a narcissist!" I bet he does.)
The only weird thing about this is how long it took nice normal law-abiding folk to realize marriage has been criminalized and to avoid it like they're supposed to.