Two Jewish actresses who are comfortable with their Judaism - Mayim Bialik and Natalie Portman did not manage to marry men who were born Jewish . Mayim's husband converted and I hear that Natalie's is planning on converting. This is still positive because no matter how kosher or not the conversions were or are their kids are really Jewish and its better they have only one religion in their household.
Intermarriage begins the elimination of the Jewish people. The first generation may remain Jewish even if they are halachic Jews. After that perhaps not . If one's parent intermarried why shouldn't they? It is all very sad. Too bad persecution often has a way of keeping Jewish identity better than peace. May that bad cycle change in our lifetime.