1. Anyone can track transactions. It's literally a PUBLIC ledger. Transactions can remain anonymous. Depends on where and how you acquired or disperse of said crypto.
2. Bans... Like the ban on drugs? Highly effective.
3. Domains aren't required.
4. Seize wallets? They can try to steal wallets, which may or may not be easy, if at all possible, depending on the wallet.
5. Crypto a crime... I refer to point 2. As we see in other nations that have destroyed their currency, bans are highly ineffective when people have their livelihoods to worry about.

Crypto is here to stay. And what Govt can't do is print more of it. Finally, sound money for the people.