Homeopathy is, unfortunately, more of a left-wing delusion than right-wing. Young earth creationism and global warming denial tend to be right wing delusions. Other left wing problems include irrational beliefs about power generation (to some extent this happens on the other side, but even most hard right wingers admit fossil fuels aren't an ideal long-term solution...), and mysticism about quantum mechanics, "organic foods", and GMOs. There are healthcare mysticisms on both sides too. The "religious right" is ironically particularly resistant to certain alternative medicines that come packaged with incompatible religious messages, like weird aura/crystal healing bullshit.
The problem is that you have this idea that the left is the "right about everything" party and the right is the "wrong about everything" party. The only thing you can be sure a left-winger is right about is politics :), not science. In fact, your own post is an ad hominem fallacy: the right are more likely to be wrong about evolution, THEREFORE they must be more likely to be wrong about vaccines. It's a very irrational way to view the world and that's exactly how we get the problem of these ridiculous beliefs in the first place.
Remember, just because a person is too ignorant or even too stupid to understand the right answer doesn't mean they'll believe the wrong answer. Especially in cases where you narrow to two choices (left and right wing) where they'll pick the right answer half the time even for completely wrong reasons. They'll still pick the wrong answer on a bunch of other things.
As for who is more anti-vax? Well, according to this: http://today.yougov.com/news/2012/12/05/public-support-vaccination-remains-strong/, it's true: in the US, the right wing is more anti-vax than the left wing, although not by a wide margin. You appear to be correct about vaccination, for completely the wrong reasons.