The only anti-vaccers I know are liberal. (I don't even know what Q is...a character from Star Trek, right?) But throw that example out if you want.
Do you deny that DDT would save the lives of millions of humans in the third world? Having said that, you make a good point. I think that item is a weak point in my list. You could say, after all, that being anti-DDT is a value judgement (raptors are more important than humans), and not being actually anti-science.
As far as genes causing people to be attracted to the same sex...your link doesn't show that.