Government can only crack down those centralised projects and the exchanges and can't do anything to those decentralised crypto projects. And because they can't do anything to the decentralised crypto projects, they have channelled their attention to the centralised crypto exchanges and cracking them down anyone which refused to obey the regulations. And like this many exchanges have left my country.
Yeah you are right, crypto coins like Bitcoin that is highly decentralized can never be cracked down by any government, a lot of government have tried and failed and they had no option than to use it as a means of exchange in there countries, Bitcoin has made a lot of people rich and has also helped build the economy of some countries, Bitcoin will soon be accepted in other countries because it helps in making transactions easy and very fast with less fee, those countries that has already accepted the use of Bitcoin are gaining from it right now they made some rules and regulations that will also favour them.
All this centralized crypto coins are shitcoins and a lot of them are scam they are the ones giving Bitcoin a bad image which is very bad and I'm in support of government bring them down, those shitcoins are created by scammers, they will create a coin and they will be the highest coin holders and they will start advertising for people to buy there coin and hold and when people starts buying and hodling the coin start having value and increasing in price then the creations of that particular coin will sell of all there coins and then make a very huge profit and the value of that coin will fall and those that bought that particular coin lose there money.
For me government should focus on cracking down centralized coin and accept decentralized coin, because those coins has helped grow the economy of the world and I believe it will do more to the world economy, the only problem is shitcoins some countries has already made the use of cryptocurrency illegal in there countries because of the high rate of scammers that are building coins every day.
And should be stopped in other for Bitcoin to have a good name and reputation.