Oh no...you believe what you're saying. The reason that manufacturing jobs left the United States is that people are willing to do those jobs for less money elsewhere. This doesn't just increase corporate profits (although it does mostly increase corporate profits), it also reduces prices for those same goods back here in the US. When people talk about bringing manufacturing back to the United States I reply thusly, there are three ways to bring manufacturing back here.
#1 Force companies that sell products in the US to make them in the US and pay people wages they'll accept for doing that work. This would likely lead to incredibly high prices for goods and the death of our export market. You can already see that with the prices of many "Made in the USA" products. They tend to cost more without a compensatory increase in quality. They're better made but not as much as the price difference would suggest.
#2 Improve working conditions and pay in the various countries where manufacturing is currently done which will bring the cost of manufacturing there up to parity with the cost of manufacturing here. Once that happens, most goods would be manufactured based on factors other than labor cost which will bring a number of jobs back to the US.
#3 Automation reduces the number of people required for a business to make widgets. Once the number is reduced sufficiently, it's cheaper to produce them closer to where they're being sold so that a small number of jobs come back to the US but, this does nothing for the majority of people who want to do this kind of work.
Both numbers 2 and 3 are already happening. China is starting to move to more high tech manufacturing while Thailand and Vietnam are picking up the cheap disposable crap and the cycle continues. There has been at least one case of a business in Michigan that shifted a couple hundred manufacturing jobs to China and then came back to an updated plant that only requires a couple dozen machine operators and supervisors.
Concerning your points about healthcare in the United States, even insured people often land in "gotcha" situations. Here's an anecdote, my mother had to spend about 6 days in the hospital a few years ago with a previously unnoticed heart issue. The part of her stay that wasn't covered by insurance was about $3000. There's a reason that no one wants to emulate our medical system and it's not because we're the best.