This is about as deep of analysis of Japan as the Ghibli AI avatars are "art".
> If someone misbehaves and two people are close by you can be sure that they loudly will talk with each other about how the person misbehaves
This is just straight up fan-fiction, and absolutely not how the society here operates. You will get stared at. People will move aside, maybe. That's the extent of reaction from the public you can expect.
> The police acts swiftly and have small offices everywhere .
The "small offices"/kobans are more than useless for any actual "crime". They're quite useful in reporting that you lost a wallet/keys, but good luck when having any actual problems that need to be reported. Goes doubly so for areas where there's elevated chance of actual crimes happening — interacting with cops in Kabukicho has to be one of the least useful activities on the planet.
> The prisons are very strict, with beatings if you don’t follow authority.
And this is... a good thing? We have wildly different moral systems if you think that.
> Green tea and healthy food makes people be able to control their mood (hard to not stuff your face).
"Green tea and healthy food" is, frankly, an even stupider argument than "they're built different". Yes, it's the diet that makes the society more conformist, sure, why not.
There's many great, and many not-so-great things about Japan — why do these arguments online always just start with the most basic, surface level, inane pseudoanalysis?