The Constitution has a provison for holding a new constitutional convention whose powers would be essentially unlimited (just as the original convention far exceeded its authority). A number of states over the years have called for such a convention, and there's been recent discussion of it.
Lyman Stone doesn't connect the two, but his twitter thread on the faults of the 1982 Canadian constitution provide me evidence to argue against a broadbrush revision:
Canada's 1982 constitution is a lulzy document which was passed with little serious consideration and a large number of wild drafting decisions with massive unanticipated consequences.
— Lyman Stone 石來民 🦬🦬🦬 (@lymanstoneky) November 3, 2022