This is fairly obvious if you pay attention to Russia, China, India, and other powerful countries. It isn’t 1990 or 1950. The world isn’t trying to reinvent itself in the mold of the West anymore.
That's an anti historical view. If there's one thing capitalism is definitely not, it's "democratic by design". South America 60s-90s, Europe 1930s etc.
Also absurd to just assume it will win "just because". Even fukuyama gave up on this idea after his "end of history" theory completely flopped.
No, that's not what “democratic” means. Its true that capitalism is inherently oligarchic rather than monarchic, because of the property you describe above (minus the improper reference to “democratic”) but that's...a far cry from democratic.
Liberal capitalism is both a political (politico-economic) system and an ideology. It also peaked in its dominance of the developed “West” (an imprecise term by any geographic interpretation, due to exports and alignments and remnants of colonialism putting Western outposts all over the globw, but there's no really good alternative, either) a bit over 100 years ago, the modern politico-economic system that pervades the developed West is a hybrid of socialism and capitalism (“the modern mixed economy”) derived through a process of proletarian reaction against capitalism very similar to the early stages of motion away from feudalism toward capitalism through bourgeois reaction against feudalism (though much faster).
State capitalism is also a significant politico-economic system and ideology, though a different one than liberal capitalism, and arguably still on the upswing (state capitalist regimes, without any exceptions I am aware of, all borrow the rhetoric of class-participatory socialism, but have practical rule by a self-selected cadre that exercises power through, among other key levers, exclusive control of the means of production.)
Japan itself I would argue has highlighted said deficiencies. Emperor Taishō had various neurological problems. His son Emperor Shōwa (AKA Hirohito) seem alright physically but just wasn’t that good a statesman, in the eyes of some like the British who did not see him as malicious (https://english.kyodonews.net/news/2017/07/758307910564-hiro...) anyway, in that he couldn’t rein in the military and the rest is history.
It’s the luck of the drawn if you have a good leader and if you end up with a bad one it is nigh impossible to replace him without major social upheaval.