They aren't all bad people. I'm a UT grad, my oldest 2 are UT grads, but my 3rd is going to aggy. My brother in law graduated from UT, but is now a prof at aggy. My son went to aggy because they still give national merit full tuition scholarships and UT doesn't. If UT wasn't so damn cheap, he'd be there as well, but you don't turn down 40K when both schools have really solid engineering programs. Plus he felt like aggy really wanted him and he got the red carpet treatment. He could have gone to OU for free, but there are some lines you don't cross. Plus OU isn't the same caliber of engineering school.
My son loves it at A&M, but still pulls for UT football. He was raised on it and will probably always pull for UT. Most aggy can never live in 2 worlds like that, but my son can. He just likes sports. Oh my brother went to aggy, but he still pulls for UT as well. You can make generalizations, but the real world is always shades of gray.