The rule of law is NOT "coded into the protocol", and you absolutely can cheat the system. In fact, it's far easier to cheat crypto "law" than real law, for several reasons:
1. Real law is not executed by a computer, but by a highly educated judge that can actually interpret the law and contracts, and reject attempts to exploit them. Smart contracts are easily exploited.
2. Real law has a process called "discovery", which is how the legal system gets to determine the facts of the case. This works specifically because of coercive force[0]. Crypto "law" is entirely at the mercy of trusted oracles to inject facts onto the blockchain so that smart contracts can execute correctly.
3. Impersonation is far harder in real law than crypto. In the crypto world, your identity is merely a collection of private keys. These are easily copied[1], and it is common practice for criminals to automate the theft of cryptocurrency because crypto identity is so fragile.
4. Crypto "law" is immutable, which means that if it gets things wrong (very likely because of the above), there is no recourse to change things[2]. In real law, transactions can be reversed and bad rulings appealed, at least for a little while.
Until you can make crypto law that can actually do the above things, I will continue to consider it untrustworthy, if not outright unethical to promote. You may have noticed that a lot of those things run counter to the spirit of decentralization... to which I say, that is the point. The financial system evolved to be a centralized one because centralization is more efficient. Central authorities can prosecute frauds that decentralized crowds cannot.
For example, Bitcoin has no protection against someone making their own fork of the software and minting another 21M coins. This has happened many times over; some of those forks are even branded the same way as Bitcoin[3]. You may argue that this constitutes some kind of fraud, but... you can't really stop it with crypto law; and people fall for them all the time. Hell, some of those altcoins are actually somewhat viable. How is this not a form of dilution or debasement?
[0] Specifically, an escalating scale of sanctions and punishments that make refusing to participate in discovery a very bad idea.
[1] I am aware of the existence of hardware intended to prevent the theft of shining keys. I personally find it offensive that the best argument for using crypto is "lock up your keys with the same DRM shit copyright maximalists use and you'll be fine".
[2] The closest thing we've seen to crypto actually adjudicating crime was the DAO hack, which more or less only worked specifically because crypto is NOT actually decentralized - the developers still dictate the protocol.
[3] Examples: Bitcoin Cash, Bitcoin Gold, Bitconnect, Bitcoin SV.