> I’m saying there are policies that an overwhelming majority in USA supports, such as universal healthcare, taxing the rich, stop foreign wars, stop police violence, reduce carbon emission, etc.

The average person might support all of those end results if the cost to get there were zero, i.e. if we could wave a magic wand.

However each one of those has a cost or tradeoff that a significant number - possibly majority - of people would be unwilling to accept.