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Brexit wasn’t left/right wing. Eurosceptics on both sides. I’d also point out France where right-wing populism ultimately lost out despite an increase in protest votes.
There’s also a greater tradition of public service broadcasting, meaning politicians are more rigorously interrogated than in the highly commercial, partisan American system.
The EU and EC are somewhat stabilising influences too. An EU member government simply wouldn’t be allowed to do some of the stuff Trump is doing.
It was in certain shots of most scenes. The ones where the height was most obvious.