I am a bit confused about the whole idea. Why would bitcoin be a part of the monetary engineering thing for any of these countries when it was not even made or invented to do this tasks? Is this just an analysis of yours trying to connect things or you do really have proofs for that statement. Or is this just all coincidence. This is not even under the government control so how can one country benefit from it?
That is totally understandable. A country's government can benefit from Bitcoin by holding a lot of it and using its holdings to ensure its own currency doesn't drop too much in value against Bitcoin. (This is assuming Bitcoin has gained widespread trust as a good store of value.)
State issued currency is being inflated all the time, because of the incentives for the elites to issue more money and debt. From the elites' point of view, it's better to have a non-state money be the support for their issued money, in this way. This is the entire reason for having hundreds of years of modern history under gold or silver standards. (A stable gold/silver standard was the 'best' environment for the elites to skim off the cream of the economy by issuing money and debt.)
The reason 'top' economists have attacked gold since the 1960s and 70s is that, since 1914, every government has defaulted on gold and was forced to give up the gold standard, and the public's desire for gold would make it difficult for governments to run totally fiat currencies.
Bitcoin and cryptos provide a way for the elites to go back to the good old days of gold and silver standards, without an embarrassing devaluation of state money against gold/silver. It's just that, for the project to succeed, they have to make us believe the entire crypto-space has risen up independently.
As a crime detective, before you know anything, if you simply ask 'who benefits?' you will be more than halfway to your solution, if you find a reliable answer. I don't of course have any direct evidence of the actual deed (which in this case would be the Fed or BOJ creation of Bitcoin in secret, for example,) but I have lots of indirect evidence.
The problem is that the vast majority of the educated public don't understand this benefit, and they have no evidence other than 'Satoshi disappeared.'