On the other hand, neither robosats nor bisq will allow you to buy insane amounts in one go. Robosats‘ limit is ~1500 euros per purchase, while Bisq‘ is around 0.1 btc depending on the method.
There’s a risk of being banned by paypal or wise for buying too frequently, but other than that it’s very hard to prove it was a btc purchase.
But I generally agree, cash by mail is probably the only option for paranoid sociopaths 😂🤙