I’ve no issue with the private system - used it myself in the past when needed and would do it again if necessary.
If doctors and specialists were told ‘between these hours, you work for the NHS’ and they did private outside those hours, fine, go for it.
But when you can get ti see them in the middle of the day at a few hours notice if paying cash, but could be months if you can’t afford that (even though we pay for the service year in, year out though taxes), something ain’t right.
As a private patient, if the only time I could access that attention was say, 10pm, that wouldn’t deter me. And the quack would still earn their extra money. Fine by me.
But when NHS waiting times are getting critical, in part because docs and specialists are doing private work (moonlighting) during hours they should be beholden to the NHS, it’s wrong.