abortion is a class issue.

Let's make one thing clear, right now.
Ronald Reagan once said that he would support a family member who decided to get an abortion. He was not lying.

The Republican party consists of two groups, those who vote for their own best interests, since they're upper middle - upper class, and those who have been duped to join on "moral" grounds, regardless of the fact that the party makes economically poor choices for them.

Abortion will never be illegal for the middle-upper class in America. Oh sure, occasionally one of their 14 year old daughters who is too scared to tell her parents will end up in a back alley somewhere, or bleeding out on the pristine new tiles of her suburban bathroom, but by and large, abortion will probably remain legal in Europe, and for a while anyway, in Canada. Plane tickets are not prohibitively expensive for the upper class. Of course, there also remains the issue of whether the upper class will have more access to medical doctors in the United States willing to code a D&C as a "missed miscarriage", or at this point, willing to prescribe mifepristone (also used in RU-486) for "peptic ulcers". They likely will.

Promoting pro-life agendas for the upper class is therefore a power issue more so than a moral one. Their choice is not, really, threatened. It is, however, a very powerful political ploy to say that they are willing to give up their choices for moral reasons. Whether you believe in abortion or not, as a moral issue, understand, it has nothing to do with why the Republican party as a whole argues for it's revocation.