I read a few of the links you posted. To support a claim that "giving people money does not improve health", you cited an RCT examining Swedish lottery winners

I read a few of the links you posted. To support a claim that "giving people money does not improve health", you cited an RCT examining Swedish lottery winners who were already covered by a UHC program. People who already have high-quality health care don't spend their lottery winnings on more health care, and winning the lottery doesn't cause significant damage to health. Great. This says nothing about the US population in question, and absolutely does not prove your original claim.