I think the reason that Republicans are obsessed with abortion is that this is their only issue where they can claim the moral high ground, however ignorant and short-sighted it may be. Everybody loves babies, and finds “killing babies” to be abhorrent. But they are either incapable or unwilling to look at the bigger picture: the explosion of human population, just in my lifetime, from about 2 billion to nearly 8 billion people, all consuming finite resources. To say nothing of their cavalier contempt for women who find themselves pregnant after a one-night stand with an aggressively charming seducer they met in a bar.