Bitcoin can't be controlled especially by the government. I still believe that a decentralized market can survive in the long run even most of the government make their own regulations about it. The concept of this thing is really to be anonymous in transacting around the world, but since KYC is required now I think a decentralized market are slowly become a centralized thing.
Agree. All regulations imposed by governments would simply affect centralized exchanges instead of decentralized cryptocurrencies like Bitcoin. This is because Bitcoin and other cryptocurrencies can be supported by anyone around the world regardless of location, political status, among other things. Since Bitcoin provides freedom, even if its banned in a country (like China for example) it can continuously be used by their citizens in a peer-to-peer fashion. While it may not be possible to trade Bitcoin against fiat in a centralized exchange, it can still be traded in person.
Therefore, regulations such as KYC and AML usually apply to centralized exchanges (and some decentralized exchanges) which use crypto-to-fiat trading pairs. Exchanges which only trade cryptocurrencies (crypto-to-crypto) are not subject to this rule as far as I'm aware of. This applies in most decentralized exchanges where they only provide crypto-to-crypto trading pairs.
In the end, Bitcoin and other cryptocurrencies will remain unstoppable if they stay decentralized. But if Bitcoin and other cryptocurrencies become centralized, then it will be their doom as governments would be able to enforce regulations at will. Just my thoughts