Terrible analogy. fentanyl requires a prescription to get access to it. There are well defined processes for this.
Until the SEC defines what sort of requirements there are to purchase crypto (like the FDA has [0]), coinbase isn't doing anything illegal by selling it.
Bad analogy because Coinbase isn't you. Coinbase is a licensed securities dealer. So that would be more like a licensed drug distributor asking the DEA how to get a license to distribute fentanyl to hospitals. And the DEA would happily answer them.
