If you read about the plaintiffs in famous cases like this and others, the defendant is much different than the picture we imagine.
For example, In Plessy vs Ferguson, the railroad company opposed the idea of racial segregation of rail cars, because it meant they had to spend more money on cars for their train, and they (along with others) recruited Plessy and staged the arrest of Plessy in hopes of getting the law overturned. They even went so far as to inform the arresting party of the specific charges to bring so they’d have the best case to challenge it.
That's a misreading of TFA. It's not that she ever opposed abortion rights. TFA makes it clear that the just did it for the money.
There may be no good antidote for this. If Roe could not be unwavering in her convictions, or could not maintain the optics of being unwavering, then who possibly can? How could we better prevent evangelical Christians from lying about these false recantations?
Which convictions are you referring to specifically, since she showed both sides?