I mean... do you really want to have to guess whether congress.gov is run by the government, or some random country which decided to sell of .gov TLDs for extra cash?
Or, potentially more deceptively to consumers, "healthcare.gov", etc.
Or, potentially more deceptively to consumers, "healthcare.gov", etc.
As a non-US citizen, I find it strange that matters of global internet governance are discussed with apparently mostly arguments about US-specific issues.
I'm generally less critical of the UN, but I would agree that the UN is pretty much the last body that should be invested with any sorts of power.