I would say if you ignore the poorest 40% of the population, you've got quite the slim margin to go before you are no longer talking about "Most" Americans, which the OP was pretty explicitly talking about.
He was saying "Most people in the US" don't make 100-200k more, and that they probably don't even make 100k. This was in response to the generalization that "people from other countries ... underestimate how well paid people in the US often are".
Now there was talk of getting the political motivation to change things, so I guess everyone is assuming Medicaid/Medicare/VA recipients don't want to change the system, but that wasn't really established, nor was that really being refuted.
