We have that in canada and it does not work that way at all. Single payer turns into a big en(ugh line item that there is political "otivation to limit supply and it all goes to crap just in a different way than it has in america. The solution is way simpler: ensuring there is enough supply that price raising bs fails. That gives you a bunch of different ways to get to the solution that will all work vut they all have ensuring enough supply to limit shenanigans at their base.