If you make a Bitcoin address, memorize the private key, and never write it down ever, then the only way for anyone to "reverse" transactions is to force you to physically say or write down the private key. This transaction finality seems to be orders of magnitude more final than a credit card transaction or a bank transaction.

So sure - it's technically reversible. But is this really a practical argument? It's like saying nobody is safe in public because you can be a victim of a terrorist attack any any moment. It's alarmist and practically wrong even if technically true.