It’s like… most of the developed world outside of North America & Australia. Japan and SK’s “left” ruling parties might both seem fascist in comparison to the US Democrats, and the UK’s may be about on par if not worse, but the same can not be said about most of first-world Europe, or even Australia and Canada really. Even in many less developed countries – like Argentina, Syria, Palestine, and much of Africa – you’ll generally find that the “left” parties are actually left, socialist or syndicalist or some other anti-capitalist, and not liberal. But I’d say developed countries are a lot more relevant to comparisons with American politics than ones which are not developed.
Ah yes, the pinnacle of developed democracies. China, India, Saudi Arabia, and Russia. You managed to pick some of the most corrupt authoritarian countries I could think of. A one-party “democratic dictatorship”, a theocratic absolute monarchy, and a regular dictatorship.
The only somewhat relevant comparison might be India but it’s still not part of the developed world and it’s known for its fascist corruption, comparing its politics to developed countries’ doesn’t exactly work. Even then, their only left-wing party is the Communist Party of India (obviously more leftist than the Democrats) – the AAP leans left I suppose, so they’re comparable to Democrats maybe, but AFAIK they’re far more “leftist” in their policies and anti-crony-capitalism than American Democrats even though they consider themselves centrists.
I also somehow doubt that the CCP is more right-wing than the American Democrats. Somehow. Either way, when it comes to states without competing parties it becomes kind of hard to have a “left” party and a “right” party. This also applies when the non-ruling party has its politicians jailed, killed, or otherwise purged whenever they challenge the ruling party. So basically all of them except India…