For some things, I want my kid to be like me. I believe that some political views are either morally reprehensible, undeniably hypocritical, or mind-numbingly stupid, and those are views which I do not wish my children to hold.
If I raise a kid that believes in young earth creationism, I'd feel as though I have failed as a parent. Young Earth creationisms is a mind-numbingly stupid belief.
If I raise a kid who believes that gay people should be treated as inferiors (by virtue of opposing gay marriage or wanting to pray the gay away, etc), I will feel as though I failed as a parent because I find those views to be morally reprehensible.
If I raise a kid that opposes granting citizenship to so-called "anchor babies", I will have failed as a parent because that position is ****ing retarded. Not to mention, my father came here illegally, so my kids would not exist without illegal immigration, which makes it especially hypocritical for them to hold such a phenomenally retarded view.
It's not necessarily his political views that I want to affect, it's his general way of thinking. I do not want to raise a hypocrite, a moron, or a morally corrupt douchebag. In my opinion, some views are indicative of those traits, so I do not want my son to hold them.