Sweden isn’t what it used to be and way less hospitable to expats since 2015. One will get a totally different experience living in Sweden than they would traveling to it, think working in Japan (Did that for six months). What you want isn’t going to happen with 100 different identity groups wanting to be treated in different ways.
Swedes start paying into their social safety net system early and they pay a lot which is why they swiftly closed the doors to immigration around 2016 because it was simply crushing their safety nets. The left wants non stop immigration not a big social safety net like Sweden and Switzerland you can’t have both pick the one you want more. Sweden found out the people coming in were taking out a lot more than putting in which doesn’t take and economic expert to figure out.
We’re not Sweden or Switzerland we are ratatouille.
If the Democrats actually wanted Sweden, they’d enact strict immigration controls that benefit the nation to create a sustainable social welfare system. However, they have no intention of doing that and decree that it’s racist to argue math, so their true intent isn’t much of a mystery.
You just named off two mostly mono cultures. They all speak the same language, there are very few cultural differences and without those differences there is low cultural conflict. Even political conflict is relatively low in Scandinavia and Switzerland. Of course there is the old “French Swiss vs German Swiss” debate, but ultimately they are more culturally unified than we are.
The US is a completely different use case. In reality, we are about twelve different nations with disparate cultures who have entirely different ideas on how a country should be run. If you want to run the US from the top down, you’re going to have to use tyrannical rule. Because none of the nations will agree on much of anything. Fundamental differences.