Probably a perceptual illusion from only watching a curated selection of social media content. In my everyday life, it’s extremely rare to encounter anything remotely resembling the levels of idiocy that get portrayed on Twitter, which are unfortunately the only point of reference to outsiders.
This is very true. The US has a population of some 330M, so many times larger than the next 'western' country. That means that small groups of crazies are much bigger than relatively equally small groups elsewhere. Plus, the US is closely watched by the entire 'western' world, so we notice what's happening there much more than in, say, Germany - which has actually had a lot of COVID-19 protests as well, and has a large number of extreme-right organizations that have even been committing terror acts in the past few years and have started to influence national politics through the rise of the AfD. But non-Germans are unlikely to know that, while we do notice every weird fart in the US.
It also doesn't help that Trump is a complete trainwreck, of course. If the US president and opposition were all more sane and cooperative, it all wouldn't be as attractive as a spectacle.
BBC is a good news outlet, especially for the U.K but let's not pretend they don't also have a heavy, heavy bias. In reporting Iraq invasion and anything related to Russia or even NATO the BBC is ridiculously biased. Of course, it is probably better than any other state run news outlet but do not for a moment take what it reports about anything related to middle east as unbiased.
That 'heavy heavy bias' appears to be left or right depending on who's disliking the BBC. Apart from, there are also good national news services elsewhere. From what I know, that includes CBC and Radio-Canada in Canada, NOS in the Netherlands, and Yle in Finland. They just don't have the same reach as the BBC - partly because they don't cover international affairs as widely (and because two of these aren't in English, of course).