Democrats are correct about one thing: The Supreme Court has more power than the other two branches. That’s not the way it was intended. But it has become the norm. They are right to be unhappy, just not right to act up like this. Long term: We need a few constitutional amendments, or a new constitution, to restore the balance.
No we do not need a new constitution! Just stop
The Supreme Court has more power than the other branches because their justices turned the process of judicial review into "the Constitution means whatever the hell we want it to mean." If we get ever get a decent majority of conservative justices on the court, that will result in a return to the proper balance between the branches. No new constitution is needed; the left could ignore the new one just as well as they do the old one.