Ok, bare with me.
1.) Most of the interracial relationships I have been exposed to were not the most healthy relationships in the world. These type of things stay in the back of your mind.
2.) Lets say my daughter goes on to marry this guy and they have kids. You do know that not every biracial child grows up to be Mariah Carey. Alot of the time these kids are the butt of jokes and constantly harassed. I wouldnt want my grandchild to have go through that.
3.) My mindset. I would be shocked and upset because Ive never envisioned that my kids would ever marry someone outside of their race.
If my daugther ever calls me and says dad Im bringing my friend Joe over for dinner this saturday. When saturday rolls around he walks in the door and he is black or arab or whatever I wouldnt throw him out the front door and tell my daughter to get out of my sight. But Id still be a little shocked and upset (not upset as in crying my eyes out and throwing a fit).
As I understand it, your opposition to a daughter having an inter-racial relationship is practical. You don't want her, and her offspring, to have to deal with some of the issues that society will dump on them.
This is understandable, and I applaud your honesty in saying so. There are so many people who are ready to jump on anybody who strays from the acceptable party line on this.
I still hold to my own view - that the quality of the person is what matters. I think that society is much more accepting of interracial relationships than it used to be, and that if the two individuals are mature enough and have the right attitude, the issues can be worked out.
But you are right to think that race is a burden that will make the relationship more difficult. That is just realistic. Still, I wouldn't be opposed to a high-quality person for that reason alone.
I have noticed that many trashy white girls have taken to dating equally trashy black men as a form of rebellion. These girls are subtle racists in their own way, because they go for black men specifically on the assumption that their blackness makes them trashier. This is not the kind of interracial relationship that I would support. Then again, even here color would not be the issue for me, because I would oppose my daughter dating trashy guys even if they were white.