I think most everyone becomes grouchier as they get older. I will bet that while you may be less tolerant of minorities, you are also less tolerant of just about everyone else, also. As I get older and wiser, I have become more tired of others not understanding that I know what is best for them. Foolish antics by others used to bring a bemused smile to my face and some nostalgia for when I was foolish. Now, however, I sometimes just wish some of the foolishness would just go away.