Why do so many people on here believe in nonsense like this

No.12313221 ViewReplyOriginalReport
He blatantly lied about many of his examples and he conveniently left out that Jews intermarry at a rate of 70 percent in America? Seems hard to believe that a group of people can be tribal but also be so prone to marrying out of their race. I guess people on here are just as stupid as on /pol/