White Americans want to imagine themselves as part of a European diaspora and therefore fantasise about Europe as a place that is simultaneously more 'advanced' than the US and also fixed in time at some nostalgic or idyllic moment.
These fantasies are also racist in that they erase the diverse communities who actually live in the counties and fetishise a projected whiteness into a cultural superiority. The simultaneous and contradictory freezing in time makes that country an eternal, fixed homeland, free of diversity or the same structural problems of capital that plague north america.
This becomes problematic at various junctures, most often in north america, but also in europe when the US's billionaire class pumps money into fascist political projects that share their racialised nostalgia.
The idea of countries being 'advanced' relative to each other is already highly sus.