I have no problem saying that cash should be uncesorable, as far as that goes. But it as limits built in - it has to physically transfer hands, true anonymity

I have no problem saying that cash should be uncesorable, as far as that goes. But it as limits built in - it has to physically transfer hands, true anonymity is difficult, and is practically limited in its scale (moving and then using $1,000,000 in cash is logistically less practical than using a wire transfer). Ie. it is mighty difficult to use cash for ransomware attacks, and it is not that simple to get paid in cash for a kidnapping (eg. the case of the guys who kidnapped a schoolbus, but while working out how to collect their ransom, the kids escaped.)