As a father of a multi-racial family, this should be treated as a learning moment. We can't change the past but we can learn from it.
I teach my children acceptance. If you're older like me you likely grew up with the comments from your dad (in my case step dad). This kind of hatred is often passed from father to son.
To this day my step dad holds deep prejudice. Doesn't mean I love him any less, but I'll be damned if I pass that into my children.
Toss out the Aggie hate, but in the end we are all sons of Texas. We either own it, or bury our heads in the sand.
Gig' em.