Of course they are...they're not pro-life either. The Republican establishment, including many (maybe most) explicitly "pro-life" elected politicians, love abortion for it's social benefits (less welfare, fewer single parent families, lower taxes stemming from those two). They use Roe V. Wade as an excuse to do nothing while still courting the pro-life single issue vote. It's a neat, and very clever, scam they've been running for coming up on three decades now. As I've repeatedly mentioned on this board, the federal government currently has the power to virtually eliminate the practice of abortion if it wanted to by enacting powerful policies that would discourage abortion without restricting it. The fact that it has chosen to not use that power, particularly during times when it's been under the control of the "pro-life" Republican Party, is very telling.
Anyone who is voting Republican for this issue alone and waiting for them to do something is a fool.
Well all of us pro-life fools could join the LP and work toward more open borders. We could even follow Harry Browne's advice and not kill the bastards who attacked us. Or maybe if enough of us join the LP, they will list abortion as one of their main issues on their website.