It's not a matter of agreeing with Justice Roberts.
It's a matter of what the SCOTUS decides that makes it reality.
We may not agree that abortion is a right but it is the law. An immoral law yes but it's the law of the nation.
If we minimize the Roe vs Wade down to agreeing or disagreeing with those particular judges at the time how does that help us change it?
One does not have to agree with Justice Roberts to agree that ObamaCare has won.