Rather than futz around with piecemeal regulation, we need to either make legal changes to return to pre-1971 views on anti-trust or socialize the whole process.
I live in a country with socialised healthcare (UK/NHS) and while I like the NHS (I have two complex medical conditions that would largely make me uninsurable in the US) it has it's problems.
As always it's the implementation not the concept, the NHS has been a political football for decades, The left wing party (Labour) get in and increase funding to offset the damage the Right wing party did (the Conservatives) by underfunding, then they swap back and forth.
Even with all of it's problems it's a very efficient system at scale but it could be much better.
For what it's worth out of 600 odd MP's (our version of Congress people) I'd maybe piss on two or three if they where on fire, the rest can burn.
Sorry but this isn't a problem with socialized healthcare, this is a problem with education of people in general and voting knowledge and the election system. If a party that bankrupts a popular system keeps getting re-elected then something is wrong, _generally_ this can be attributed to the two party system of government that has become much more predominant in the western world and enables extremism by catering to single issue voters.
To reword your statement, "My sandcastle building is going great except every once in a while this jerk comes over and kicks over my sandcastle, I guess there's a problem with my sandcastle" and the correct answer is that the problem is the jerk.
We had a referendum on proportional representation vote and you should have seen the adverts from the against camp, it was depressingly expected though.
From what I have seen I'm the most optimistic about either ranked choice voting or leveling seats to help promote more diverse opinions in politics and I think that publicly funded elections are going to be a must either way - the corruption and elevation of corporate interests are getting too extreme.
How we get to that point I'm not certain of.
But one hilarious thing in the US is a trend lately of people submitting ballot measures, those ballot measure passing, and then the conservative held government refusing to honor those ballot measures. I don't personally thing direct democracy is a good general solution, voters generally won't have the expertise to decide intelligently, but when an issue is prominent enough that a plebiscite is called going against that is incredibly undemocratic.