The Supreme Court neither banned abortion nor prohibited the legislature from protecting the right to abortion. It merely decided that it is not currently protected by constitution, which to me seems completely correct. If most people agree that it should be a constitutional right, no one stops the legislature from adding the required amendment. And if most people can't agree on that, well, adding that wouldn't be de…
It is worth considering the larger shape of things. Do you imagine, if the Republicans control all three branches of government, that they would not create a federal law that bans abortions everywhere? All signals point to that, and the overturning of Roe vs. Wade is there to remove friction to get there.
As the pendulum swings, so does policy. It would be more difficult IMHO if there were more than two parties.