That is the worst claim that can happen, claiming to be a bitcoin city in the world is a declaration without the consent of the creator, they just claim it, what should be worthy of being a bitcoin city is the place where the creator built bitcoin, that is more logical than being claimed by a country or institution.
However, if the implementation is that those countries create a bitcoin city and in it transactions using bitcoin are allowed only in that city, I think that makes more sense, but of course this will not affect the bitcoin mechanism and its decentralized nature, that claim only applies to the implementation of bitcoin use and we can call it a bitcoin city, I think it's better like that.
This makes no sense what so ever. Why is the consent of Satoshi necessary to build or claim a Bitcoin city?
If a country decides to bring Bitcoin closer to main stream and to also bring the majority of Cryptocurrency investors over, I have no problem if they claim it to also be the capital of Bitcoin. In fact, this may ultimately be healthier to Bitcoin. If you have no competition, you have no reason to innovate. If countries compete for the capital of Bitcoin, we will all only see good things coming out of it.
It will most likely end up being a competition of who offers the better advantages for investors or for the Bitcoin users generally. It may lead to more lax regulations. For example, The United States may regulate Bitcoin but do nothing for privacy. Then, other large countries may be tempted to attract investors to THEM by regulating Bitcoin while also considering privacy. Ultimately, if this means investors are showing signs of willing to move their investments to the other country, The United States may feel the need to also start considering privacy. If you ask me, this can only end well for us all.