If you feel one particular group of people,( because of the group that they belong to, not the individual themselves, ), is not worthy of your daughter. Does that make you a racist or a bigot? Fine line I would say. If you meet the guy, who is a member of an ethnic group or religion, you are not enamoured with, like him ,and think he loves your daughter, she loves him, would you be adverse to them marrying? Because of his ‘group ‘? That is where I think you will find the ‘line’. Lots of families think that their offspring could do better, and don’t agree with the choice,with whom they married, but hopefully not because of race or religion, even before the marriage starts.My grandfather was a proud Orangeman, member of the lodge,he used to walk in the parade. I married a catholic. He would have been very proud of his grandchildren and great grandchildren. My father being the wise man he was , mentioned nothing about religion, and I got no ill vibes.