A Strange Artificial Selection Scenario

I was flicking through a networking site and mocking people's profiles until I came across a hardcore conservative christian. Once I was done brewing hatred for her I started to think of ways of removing morons like her from earth, under the circumstances of me having some sort of magical wish ability. When I do these hypothetical scenarios I consider the adverse effects of a specific wish. I consider my influence will set off a chain of events, not all of which are foreseeable and/or desirable. One of the major concerns is people becoming aware of this strange new influence. If suddenly no one was an anti-gay asshole all within a day, that would be strange, people would think "wow that's incredible, something is going on". Now it has occurred to me of a much more efficient way of making such changes.

I could increase the likelihood of miscarriage to conservative religious book bashing assholes by around 50% and within 2 generations there would be a significant change! Some of these people will likely adopt, which is also useful. This passive approach would not rise suspicion of super natural causes! You could do this with anything. But this raises the question, if conservatism started to dissipate in most households, would the human race as a whole start to compensate and create new standards to uphold a balance between conservative and liberal attitudes on life? I may be able to remove certain cultural elements, certain views and such, this method could very easily remove homophobia, but is conservatism and liberalism always going to be an apt term in human kind. Or perhaps will people one day evolve socially and biologically to a state where we can achieve much smaller variation in thought.

Certainly all men are NOT created equal, but it's fair to say they are rather close. In an age where physical evolution takes a backseat to mental evolution, surely this gap will shrink quickly in the next couple millennia and we will get something close to it.