You mention Japan, but even as a local I'm not sure which movement you're referring to regarding anti-beueaucratic populism.
Perhaps, are you alluding to SEALDs and those against revising the constitution? If so, I don't think their voice are comparably as loud as those overseas.
I was talking about nationalism and populism more generally. For example, I've read many times that the revisionist far right has growing influence, re-writing history books to hide Japan's actions in WWII, launching campaigns against those who criticize that period, etc.
Perhaps, are you alluding to SEALDs and those against revising the constitution? If so, I don't think their voice are comparably as loud as those overseas.