There's a "Vote No on Ranked Choice Voting" sign on my way to work.

Some will at small, minor levels, but never enough to cause a serious threat. It's like how it's socially permissible and legal to make worker co-operatives and the like, the fact that it's non-threatening to the status quo keeps it a useful carrot that will never arrive at a scale that causes drastic change.

Ah today's bothsidesism

Progressive Democrats will and do. Neoliberal ones do not as they only care about the donor class