What? KYC is a legal requirement, how in the world is that illegal? If a law demands some action, by definition, that action is NOT illegal.If they remove the illegal KYC requirement when someone buys cryptos, then automatically fiat money is dead in the next 5 years. Nowhere are citizens required to send copies of their ID to purchase anything (especially text lines). It's against a whole bunch of laws (personal data, privacy of communications, freedom of market access, etc.). That's how "confident" they are.
They just want to collect taxes and interest for using a medium for the transactions even if there is a free alternative medium. It's like they demand to send your ID if you want to use free open source software that works perfectly to force you to use expensive commercial software with bugs.
If they dare let’s remove the illegal KYC requirement and will see… now if someone want accept payments in crypto it means that have to enforce his clients to send their id to buy crypto. It’s huge obstacle, but it will fall one day.
And then you will only need a non custodial wallet (like atomic wallet for example) and you will be free to own and handle all the types of crypto from one place.
Did you mean unconstitutional? I don't buy that either but at least you have some arguments you could make here.