The US was like this some years earlier. Those were the prosperous years where everyone was capable of achieving the American dream. Then the tax cuts for industries came into effect and the middle class bore the blunt of it and dwindled. The wealthy are able to avoid this since they can afford to pay an army of lawyers to channel their wealth through loopholes. A social safety net is essential for progress. There are quite a few examples of entrepreneurs who were able to make it because they were not starving to death. Also going bankrupt due to ailments is ridiculous! The tension brewing up in various parts of the country is a sign of the inequality and corruptness in the system. And the solution is not to split the country but to fix the broken system.
And the solution is not to split the country but to fix the broken system.
Leaving aside the preposterous rewriting of U.S. history in your comment (the US was never like modern Switzerland, even when it was significantly more homogenous), your goal is not possible with the current size and cultural diversity of the US.
If you want social safety nets, you need a homogeneous culture that stresses (irrationally) not taking advantage of them, thereby making them sustainable.
I know this is not a happy thought for you. It was not for me, as well, for quite some time.
I came from the other end wherein I believed social safety net and welfares breeds parasitic behavior. But now I've come to believe the benefits of those programs outweigh the negative aspect where a section may starts taking undue advantage of it.
In the absence of such safety nets, I think people will go for more safer bets which make them financially stable as opposed to riskier bets which may bring innovation but could also endanger their livelihood.