ARE INTERRACIAL RELATIONSHIPS WRONG?

In todays society I see alot of interracial relationships. You can't go to the grocery store without seeing at least one.
As a matter of a fact my younger brother ( whom I consider to be my first son) is married to a white woman.. This was a shock to everyone! He is a very well educated and attractive black man who always had a fine sister on his side. His last black girlfriend was so fine, she made Beyonce look like a Gremlin,h--l I was trying to get with one of her sister! Need less to say, when my brother showed up to the house with this white girl (whom is not ugly but not so fine either) we were like" WOE!" They also get this same look and attitude when they are out in public,"sisters be hating!"
Granted, now my brother and his wife have two beautiful kids together. His wife cooks peach cobbler, bananan pudding and greens like my grandmother and her comments and character fit our family so well we tend to forget she white . H--l if she come over with some pigs feet and chitterlings I'm gone start qestioning her true ethnic back ground!
I love my sister inlaw and I will die for her just as I would for one of my blood sisters but with all that being said I still think that races should not mix! Don't get me wrong I'm FAR FROM a racist, I even dated a white girl before and she was very good to me but the whole time I felt it was wrong. Am I wrong for feeling this way? Am I simple minded? Are their people outer there that feel the same way I do that know they aren't racist but don't think it is right for "them" to date outside the race?

NOTE:
WHEN I SAY "THEM" I MEAN THE INDIVIDUAL RESPONDING BECAUSE I FEEL TO EACH IT'S OWN, YOU DO YOU AND I'MA DO ME!