Graz in Austria with its Marxist mayor is an example of a wealthy, left-wing city. No such cities exist in the US. Just look at the recent scandals with the LA city council, the place people would probably describe as the “far left” of the USA. The leading Democrats were recorded spewing racism, plotting to screw over renters, and destroy the “left wing” council members who are in favor of what would at best be centrist policies in Europe. People idolize Canada because it seems to have a slightly more pragmatic baseline than the US, although in reality both places are pretty far to the right.
"Left wing" in the US (and TBH much of Canada) is just reduced to being about a bunch of cultural issues. Nobody on the so-called left in North America actually espouses any real socialist economic program. It's blasphemy, and "going too far" even among people who wear the t-shirt.