"people who insist that practices that are normal outside of the US are completely and totally impossible"

This seems to be the culture in the US as a whole.

Gun control? Completely impossible, even tho it's worked well in every first world country on the planet.

Paying employees instead of tipping? Completely impossible, would disincentivise work and the economy would collapse, even tho it works well in every first world country on the planet.

Public healthcare? Completely impossible, even tho it works well in every first world country on the planet.