The Senate wouldn’t go along with the Stupak Amendment. Actually there was no need to as there was no public option in the Senate bill. (Private insurance has always been allowed to cover abortions.) But for the record there were 64 Democrats who voted for the Stupak Amendment when it was offered and meant something. And most of the pro-life Democrats were voted out of office, whether they voted for the final bill or not. (And that was my point.) The pro-choicers were mostly if not all re-elected.
As for the GOP, look at the profiles of those who were elected in pro-choice districts or states, like Illinois or Massachusetts. They may vote for what their leaders tell them to vote for but I wouldn’t call them exactly all hardline pro-lifers who would initiate bills like the Sanctity of Life bill. Most of them are just pro-status-quo and keep their mouths shut.
It takes more than a Republican Congress, a Republican White House, and Republican Supreme Court to overturn Roe vs Wade. But we know that already.