In the past, I do believe that to be true. Republican candidates understood back then that they needed to pay lip service to the pro-life cause but there was never any real will to do something about it. If nothing else, the people who owned those candidates didn't really care either way about abortion and had no interest in fighting that battle.
Considering how well funded, how well organized and how vocal the pro-life movement has been since RVW was handed down, there's literally no reason for them to have not been successful in their efforts, except that the people they vote for simply did not want to take up that cause.
Having said all that, there's been a pretty big sea change in recent years. Republicans have taken serious steps toward banning abortion or, lacking that, restricting access to abortion as much as possible. Some efforts have been successful while others have not but at least now, there's actual debate happening about it in the places that matter.
When it comes to the pro-life cause at this stage, change is good. And indeed, change has been very good. For us anyway, not so much the pro-abortion movement.
"Safe environment" or not, murder is murder.
So alternatives to abortion do work? Interesting.
I think the pro-abortion types out there miss the forest for the trees when they ask questions like this.
Personally, I'm fine with it. I'm not the one who will have to stand before God someday and explain my support and advocacy for murder. No regrets.