I think those issues (apart from 3) are directly reflections on American society. People don't value better public transport and universal healthcare because they are seen as the antithesis of the "American dream" and the idea that working hard brings you wealth.

Unfortunnately we're not in the 1950s and the uncapped growth isn't a thing any more (outside of cryptocurrencies perhaps).

I expect things to probably get worse. It seems everyone is concentrating on social awareness like trying to get women and black people into more high paying jobs, which is a good thing. However this doesn't actually stop the poverty cycle for the other millions of people (including the aforementioned groups).

I think it requires reframing what social care and living in a society means for meaningful change to happen. I think people need to stop seeing wealth as some entrepreneurial thing they can mine for themselves. This "spirit" doesn't improve anyone else's lives, Apart from the select charities and issues they choose to support which aligns with their own social agenda.

I do believe a billionaire shouldn't exist. Or a half a billionaire. That kind of wealth doesn't solve any issues for real people. A wealth tax on the ultra wealthy to pay something towards a healthcare for all (like most western countries have already) might help people though.