People always bring out the population or area size of the US as an excuse against why we can't try to do better.

I think people bring out the population or area size in order to explain where facile comparisons fall down. Scale matters.

This fictional scaling problem makes as much sense as correlating the effect of some public policies on the height of the political leader or average temperature. It's a silly scapegoat that makes no sense at all.

There’s no point for you to see. I asked a question: whether the original poster could see the political climate in Norway realistically scaling.

Maybe they’ve figured out something we in the US haven’t.

The case for this hypothetical scaling problem is baseless and absurd. It's a silly scapegoat. That's it.