Politics is the mindkiller and all that.[1] For almost every X where you can say, "Were you to advocate X in the late 19th century, it seems nearly everyone would have laughed you out of the room. But that sentiment has reversed here in the 21st century.", it is a good thing that opinions on X have changed. This heuristic isn't perfect, but it should cause you to think more about X.
Funny you should say this. Just the other day I was telling a friend of mine that I really should have been born in the 19th century. Much of what people believed then makes more sense to me than what people think today.
1. http://lesswrong.com/lw/gw/politics_is_the_mindkiller/