The whole article is interesting and well-said, but this is for me the main point when people try to compare other waves of immigration to the current migrant tidal wave in Europe and, to a lesser degree in North America and other parts of the Western world:
"Hasidic Jews do not bring down buildings. When we act like twenty-first-century Islamic immigration is tantamount to Catholic and Jewish immigration of the early twentieth century, we are doing reality and history a disservice."