That guy is a bit of a cunt.
For starters, marrying first cousins is not the danger he makes it out to be, AND it's not the common thing he makes it out to be. Half of US states allow first-cousin marriage.
Granted, you don't want to shut off a family to any other blood but its own, or you get serious problems. But second and third cousin marriage isn't seen as dangerous by any serious scholars that I've ever read, and it's legal in all fifty states, with first cousin marriage outlawed in only half. So the guy is exaggerating.
Second, he blames inbreeding for Iran going from a modern democracy to a theocracy. That's VERY dishonest, since our overthrow of their democracy might have a bit to do with it - derp.
I'm not denfding islam, which I despise. I'm defending reality, which I prefer to the dishonest faggotry you've presented.
By the way, can you not be a faggoty little cunt with your titles? Some of our members work in offices, with coworkers of the islamic faith. It's one thing for them to see a thread with the title I gave you - it's another to see it with the title you chose. Safe for work and kids - can you just not be such a steaming pile of shit, constantly looking for the line like a dick sucking punk? I don't like moderating, and I don't like dick suckers, so stop making me moderate, you dick sucker.