Without excusing any of the inefficiencies/stupidities/cruelties of the current system, which are legion - it's at least to some extent a *good* thing that we're paying more for healthcare, because there's more useful healthcare out there to buy.
In 1800, you were probably better off *not* going to the doctor if you were ill. Even if you did, the services and drugs/procedures available were pretty lousy. Contrast that with today when you can have your own immune cells modified to cure (literally, cure) a number of blood-born cancers, and you can have your hip replaced and run marathons again, and you're very unlikely to die of an infection or burst appendix or other minor but deadly problem.
There's more to buy! And it's stuff we mostly *want* (yes, of course there are stupid drugs whose side effects are worse than the condition they're treating, too). If I could pay most of my net worth to, say, extend my healthy life by a decade, you're darn right I'd do it.
So I'm sort of fundamentally ok with healthcare taking up more and more of our GDP. It's probably the most worthwhile thing to spend money on, assuming you've made sure you have food/housing. Hell, I'd rather have my health and no house than be sick in live in a mansion, so maybe it's second only to adequate food and water?
I'm rambling. The system is set up idiotically and inefficiently. But we're also getting a lot more utility out of it than we did in the past, so it's not all bad.
-W