oh,yeah, I totally agree with you on health care, probably go beyond what you think.

National health of some kind is what works best, not single payer fee for service. We've had plenty of evidence already for a very long time: it's been a never ending task countering fraud with plain vanilla Medicare fee-for-service. There's always a new scam

 I think perhaps it lessened a bit in the last decade because so many people now sign their plain vanilla fee-for-service Medicare over to a managed care with an insurance co. with gatekeepers, so that they don't have any out of pocket at all. Which has their own downsides, natch. But the insurance cos. have incentive to keep down the fraud down to keep their business viable.

Also with free choice fee-for-service single payer, there's also the stuff that you wouldn't label outright fraud but just bad medicine, maybe for monetary profit, maybe for other kinds. Iatrogenic medicine, treatments including operations that people don't need or even make them worse, people demanding stuff bad for them because they saw a tv commercial, doctors pushing certain drugs or devices because they were on a junket in Hawaii that the drug co.paid for, motorized scooter cos. pushing  "free" scooters by prescription when a walker would be better for the person keeping their body from falling apart, etc.

People like me would love it because I've had a lot of trial-and-error experience becoming a good patient and can research and rule out skeptical treatments, and it would mean I wouldn't have to deal with "in plan," could try to get exactly the right providers. But like with voting, many people either don't know how to do that correctly or don't have time to. And are therefore are ready marks for fraudsters.

And if put decent time into learning how to use a system of national health like the UK's, you can do a lot to mitigate those down sides. Besides supplemental private insurance, if you don't have the money, you just shop primary care until you can find one who can get you the specialists you believe you need.