That is a crazy thing to say. Not saying that it can't be true, but a socialist system doesn't mean automatically long wait lists.
As for walking away - it's hard to do that if you're dying or unconscious.
And of course corporate capitalism always collapses to cartels and monopolies.
The idea that a free market optimised for consumer competition is a mythology, not a reality.
Markets compete for shareholder returns, not customer satisfaction. Customers are only ever a convenient source of profit with inconvenient expectations of service quality and cost.
No. Wouldn't wait times are dictated by supply (doctors) and demand (patients), not the political system?