More or less my experience too.
But at the same time, I doubt there is anything special about me or my US born coworkers. We aren't superior just because of the continent we live in. But offshore work is almost as a rule terrible quality done by people that are frustrating to work with. It doesn't make sense
This experience most likely because dealing with offshore software farms. Those are the same shit as their western counterparts and even worse because of language and logistics. On an individual scale however one can for example easily find great developers in Eastern Europe, and former USSR countries that do amazing job and for very attractive price. Just not dirt cheap.
And yes. There is nothing special about North America as far as quality of software developers in general. Mostly you get average buzzword indoctrinated not so great people with some amazing expectation salary wise.