I'll try to address your stuff but I think we're just diametrically opposed here. I'm not trying to change your mind, just offering you the other side of the argument.
Re: Japan, I did edit my comment a minute or so after posting.
Japanese are cold to outsiders: Yes, because they care about their people and culture. This helps bolster my argument.
Re: Fukushima: The engineers involved believed that the facility could withstand a natural disaster of that force. They were wrong. Unfortunately, this is part and parcel of any engineering. It will lead to improved nuclear plant designs. The government will not allow anyone near the site due to radiation spillage. With Fukushima it's very hard to prove criminal incompetence. The design just wasn't good enough.
If the movie is to be believed, in "Snowden" the US went to Japan and offered the Japanese government spying technology to use against their citizens. The US was doing it to their citizens and would help Japan do it to theirs. The Japanese refused. There could be all sorts of reasons as to why, but the fact is one of those is that the people in the government thought it was wrong to blanket spy on their citizens.
Re: Hitler: Hitler was surrounded by hostiles. Hitler had been a soldier in WWI obtaining the equivalent of the purple heart to rescue other soldiers because he didn't have children so he felt his life was not as important. A literal war hero. Hitler was not itching for war. When the Polish were killing Germans before the German invasion of Poland,
Hitler attempted to broker peace many times. I recently played the board game Diplomacy, which is about Europe pre-WWI. If you happen to play as Germany, you will find that you're surrounded and everyone wants to attack you. The people I played with had never played before, same as me, and we all remarked at how the game made us truly appreciate how borders and geography matter.
The fact is that we've had some form of human organization of leadership, aka governments, for thousands of years. I'm not defending the notion of government, but until there's a viable alternative, this is how humans work and your proposed future ain't happening.