Yeah, cash is the most anonymous way to make transactions, even more than monero or any crypto.
but it is extremely hard to get millions of dollars in paper money.... specially if it never was in your bank account.
This is not the reality for hackers.
Hence it's limited supply
The government want a foot print of how the public money are spent.
They won't be this harsh on mixers if data's Would be submitted to them.
Despite Fiat been one of the oldest form of money laundering
They turn a blind eye because anything the Government do is 'Legal'
Let's see Trump view towards privacy.
Honestly speaking, there will always be a separation between governments agenda on crypto mixers, Mixers are working in conformity with the core Bitcoin features of decentralization, while government are working on a core feature of centralization.
I think the governments and Mixers has nothing in common except that government has the authority and power to do whatever they think is right. In facts, government clamping down mixers is basically a political control of their unknown enemy who may be working against them through illegitimate means. As a matter of facts, Mixers are also legitimate mean of doing because of the unknown enemy who may be trying to defraud them too.
Now, I think that everyone involved on one business or another, even on crypto desire privacy, fortunately, privacy is a nature of man, and mixers, through the most reputable ones out there, like the Coinomize biz has guaranteed the anonymity of users transactions.