We need to do what`s right. If the candidate for the GOP is not pro life, then it would be better for Dems to win.
So in order to back a pro-life candidate you would be happy to lose and have more liberal pro-abortion judges in the courts, gay marriage, more taxes, less rights and freedoms, etc. You are willing to sacrifice every inroad made by the GOP because the GOP candidate isn't pro-life, even if that candidate pledges to appoint constitutional originalist judges in the mold of Scalia and Alito.
Answer this: How has GW Bush stopped abortions? Did anyone under his administration stop a woman from trying to abort her child? Are abortions illegal under his administration? Are women who want to abort not allowed to do so because GW wont let them? Do they face imprisonment or any kind of punishment for aborting their babies?
Get this, abortion is legal in America even though I don't like it and I will NEVER have an abortion. But I, or you, or anyone can't stop a woman from having one. The only thing I can do is talk to her and try to make her see the light. The only thing a President can do, and something GW has done, is to appoint originalist judges to the Supreme Court. And the only thing left now is to spread the word about the sanctity of life in the hopes that eventually women (and men for that matter) come to the pro-life view.
And if a winning GOP candidate whose views on abortion are somewhat liberal, BUT has promised to appoint originalist judges to the Courts, I will take that winning candidate in a heartbeat.
And just for your information, when Ronald Reagan was the governor of CA, he signed the most liberal abortion law at the time, and he was pro-choice! He later changed his views on the issue.