They are acceptable (we have 27), the problem is the high bar to enacting one. With our hyper-partisan two-party system, it’s really hard to get anything done. Even basic legislation like the annual budget frequently stalls and we shut down the federal government while Congress pulls its proverbial head out of its arse.

They are. But the super-majority at multiple levels required to do so make them a non-starter for the petty "give my team an edge" and "force the states that aren't on my team to act like the ones that are" stuff everyone wants to use them for.