>If any, what is your advice for poor and middle class Americans?

Well first things first. Americans are mostly 'rich'. There's a political ploy about the 'disappearing' middle class but it's because americans became rich. Investment in education killed the 'middle class' by making them rich. Take this for example: https://www.pewresearch.org/fact-tank/2015/07/09/how-america...

Yes there are many americans who have poor as a mindset. 88% of americans were upper middle or high income. The amount of americans with a poor mindset is very low. As Dave Chapelle jokes, "You're not poor, poor is a mentality. The mentality that nobody recovers from. you're broke."

So getting back to the question, say you're poor or low income. These economic problems are not your concern at all. Your concern is breaking the mentality.

You need to learn abundance and confidence. Break the poor thought. The problem or why Dave chapelle says you rarely escape being poor is that the poor mentality is hostile toward this idea.