A sufficient crisis could trigger an Article V convention, which already has a large amount of states pledged to join, but the changes coming out of such a convention probably aren’t going to be good for the public.

An Article V convention is a legal process and Amendments proposed by such a convention have the same ratification threshold (which is the barrier, not the proposal threshold in Congress) as Amendments that are Congressionally proposed.

Now, an Art V convention could be seized on as an opportunity for organizing extralegal change, but then Art V process obviously isn’t necessary precondition for that, just a potential opportunity.