The US is simply too polarized, and clearly has been intentionally made so, and it has spread over here, but thankfully not to the same extreme.
Of course it is bad for the international community that all nation's people aren't connected but since the US really wants to become isolationist may as well look on the bright side.
And personally I don't consider the world exluding the US as an echo chamber, even just the EU is far from an echo chamber, it is a continent of many unique countries, US concerns are heard over here in the EU a lot even if a whole lot of it doesn't matter over here and just causes polarization.
Of course it is bad for the international community that all nation's people aren't connected but since the US really wants to become isolationist may as well look on the bright side.
And personally I don't consider the world exluding the US as an echo chamber, even just the EU is far from an echo chamber, it is a continent of many unique countries, US concerns are heard over here in the EU a lot even if a whole lot of it doesn't matter over here and just causes polarization.