She doesn't get them wrong at all. Minimum wage increases do not automatically drop the supply of jobs. There are externalities involved that have a much greater impact on that - and there are plenty of experiments across the US that show why we can absolutely raise the minimum wage and should have done so a decade ago.
Nationalized healthcare in the US can absolutely happen - she's talked about the medical-industrial complex and nationalized healthcare in depth over the past few years - all you have to do is Google it.
It sounds like you have an incredibly basic understanding of economics and you've already reached your limit. Put down the Thomas Sowell and read some of Jason Hickel, or David Graeber or Darrick Hamilton's work.
MW does drop the amount of people being picked up for those jobs - from the pool that has the least "qualifications" to offer. You are not picking out of 1 pool of candidates, you're picking out of several. It's a simple exercise - place yourself in the shoes of the business owner. If your labor costs go up, you pick from the cheapest people with the most value. You don't hire out people that are young and joining the work force as much as you would before, or older people, or people with handicaps because they cost you more. This is part of the stupidity going on with college degrees and why it is more difficult to get a job without one. Minimum wage going up when the value of the job does not move in tandem results in poorer people getting locked out of the potential hiring pool.
The MW experiments are just that - experiments. It STILL does not solve the core issue which is the government is setting the price of labor independent of the value of the job. And
BASIC ECONOMICS shows that when you set a price floor you increase the amount of people willing to go for that job. Hence once again - the people that would be picked normally are going against a larger pool of people that are also more qualified.
This doesn't solve the poverty problem and it doesn't address why some people can't qualify for jobs. It is literally just moving the goal post to appease people thinking they will earn more money without acknowledging the fact that not only have you ignored the core problem, but you've brought more competition into their lives.
Nationalized healthcare in the US cannot happen until Congress stops talking out of both sides of their neck. You cannot nationalize healthcare without breaking up HMO and Pharma holds on the country. Before even getting there you would probably be better of trying to create a free market healthcare system, which the US does not have. Even worse is if you somehow got that far, no other country would
really want that - as their medical costs would skyrocket once the government becomes the only buyer for medical services and can effectively bully Pharma for discounts like other countries do. Many of those health care systems are already struggling, Canada being the prime target with some of their provinces showing budget issues managing costs. They already get heavily discounted medical prices due to US citizens subsidizing the costs. A national healthcare system in America means that no longer happens for them or any other country and their systems would be toast.
My understanding of economics is far better than hers. Especially since I don't just sit around coming up with crazy ideas and actually put my money to work instead of sitting around pretending that it's all a neat puzzle that is easy to solve by giving people more money. Plenty of civilizations have tried it over thousands of years and it has never solved the poverty issue.