The US is currently threatening multiple of its NATO partners and serious people don't expect NATO to be around by the end of 2028. I am a less serious person I guess, because I expect it to break up within a year.
I'm glad you have so many cool 80 year old anecdotes to tell yourself, but things change.
> China has never done anything like that in its multi-thousand year history.
I mean, China's perspective on at least one of your examples is that it saved North Korea from decades-long rule by succession of military dictatorships that ruled in South Korea. Which isn't entirely unfair.