No, the problem is that they are all shielded from genuine competition.
Fifty years ago we had the same problem (but to a much smaller degree) with airlines. Then Jimmy Carter signed the Airline Deregulation in 1978. This is what happened to the price of flying:
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Unfortunately, that's not going to happen with healthcare today, because this "pro worker" bullshit is ingrained in everyone's head. Therefore whatever results in higher wages is good, whatever reduces wages is bad. Just listen to Trump talk. That moronic windbag actually believes automating the ports is bad because jobs will be lost.
The situation for healthcare is pretty much hopeless.