“As in what, she shouldn’t have married a New Yorker, or a Jew?”
That’s not anti-Semetic; it’s life. Marrying outside of one’s religion is not a smart thing to do because it make a difficult life twice as difficult. We’re Baptists and our best friends are Jewish, but we don’t make life decisions together, and don’t create and raise children together. I would hope that any Jewish parent would discourage their kids from marrying Christians, and vice versa.
Most folks in “interfaith” marriages are not very religious. That’s why they’re called “interfaithless” marriages.