Probably, but I’m not completely sure. When I think about marrying a first cousin it is hard for me to go there in my mind, it feels like incest to me; I’d say it feels like a natural taboo. But, finding out after already married, it would be really difficult to reverse course when that was the person I thought I was going to be with the rest of my life.
Lots of first cousins have been married over the years. I personally have friends who are married and first cousins.
I watched the clip, and I agree with the other cousin that what the couple does on Facebook is inappropriate.
The cousin mentioned it was illegal, I don’t know what state they are in, but it’s legal in a large number of states. I looked it up a few years ago for another discussion I was in, my assumptions is the laws haven’t changed much. It isn’t all southern states by a long shot, which would be the stereotype I think. Many northern, midwestern, western, and even the west coast were on the list if I remember correctly.