> America’s current troubles are political polarization and ballooning deficits.
American problem is one sided right wing radicalization, not polarization. If left of center moved the the right even more, the issues would remain.
I will call this Exhibit A in proving my point about polarization, thank you left-leaning person lacking in self-awareness.
Now we just need a right-leaning person who lacks self awareness to offer a rebuttal to you and we can complete the picture.
The U.S. is simply one of the developed countries where right wing populism has grown in response to mass immigration. If center-left folks flipped on immigration, the current right wing populism would collapse, just like happened in Denmark: https://www.bbc.com/news/articles/c1mgkd93r4yo