In Australia the High court makes a ruling then legislation is put into the next legislative session to 'fix up' the issue with the existing law. Although this doesn't always happen, it seems to be the most common outcome.
Many if not most of the decisions that the Supreme Court hands down could be changed by the legislature. These are based on interpreting statute. For example, recently the court unanimously overturned the conviction of two New Jersey officials who were involved in a scandal involving shutting down an interstate bridge for political revenge. The majority opinion, that again was unanimously agreed to, went out of its way to say that their acts were reprehensible. But the statute that was used to charge them didn’t cover their acts. This is something that can be changed by the legislature easily and there’s no issue at all.
The issue comes with the constitutional ones. These get the most press and tend to be the ones that are most controversial. But the alternatives aren’t much better. Besides the historic reasons for SCOTUS supremacy in this area starting with Marbury v. Madison, there are legitimate concerns with having the interpretation of your constitution being subject to the whims of the most recently elected body.
Of course, this has led to the current nightmare where Supreme Court seats are hotly divisive contests to be won. Changing the makeup of the court is a battlefield and for the life of me I cannot see a way to fix that. Changing the number of justices or setting term limits will be seen as court packing by whichever party attempts it. It might result in open rebellion. Things are very fragile here and we are teetering on the edge.
https://www.independent.co.uk/news/world/europe/ireland-just...
https://lawliberty.org/scalia-and-ginsburg-on-constitutional...
The legislature and executive could pass a new law the same day as the ruling (well, maybe not if the new law required a constitutional amendment) if they really needed to and there was sufficient political will. In practice what you see is that the judicial branch only weighs in on controversial issues where there tends to be a pretty even split so it takes a long time for things to change enough for side to build the political will to get law passed to overturn the judicial precedent.
Not if it's a ruling regarding the Constitution, which very many of the interesting ones are, they don't. A supermajority of Congress can propose, but not enact, a change in that case.
This applies equally to any individual's choice, then, I suppose.