The thing crypto gives you is the capability to get your wealth out intact (at least whatever you had moved into self-custody). If you have fiat in banks frozen by the Canadian government your wealth is trapped.
You’re right if Canada banned Bitcoin it could influence the value of the coin. Similar to governments refusing transactions in rubles. The difference in capability is in the ability to move your wealth and that short of global coordination a global store of value (controlled supply, non-government etc.) is more resilient. The fiat comparison would be having the entirety of your wealth in cash in your house - obviously not viable (and good luck trying to cross a border with it).
Crypto is also more resilient to government meddling in currency production (this is often over-stressed in US, but is a real problem in developing countries where kleptocrats devalue the currency to steal the wealth).
It’s more similar to buying gold and having it on you, but with crypto you don’t have to keep it on your person to maintain direct control of it. You just need to know the seed words.
The fiat equivalent would be moving money to an overseas account. Before you are sanctioned, doing so is just as easy as buying Bitcoin. After you are sanctioned, both are equally hard. The difference is that your Bitcoins can be demonetized, while your overseas assets can only be seized if the governments cooperate.
Say I'm an American, for example. I'd receive "sanctioned" bitcoins from a Canadian and then send them non-sanctioned bitcoins back to a different wallet address. There is no "exchange" being used in this process. I could then happily spend or transfer said coins in the 99% of the world that isn't Canada.
Your money on that account is still being trusted to some authority and your guarantees on it are limited.
The real fiat equivalent would be moving all your wealth into cash first (literally physical bills in your house), which is obviously worse and harder to move.
Your bitcoins cannot also be demonetized any differently than fiat. It’s similar to sanctions on rubles. Both types of value are vulnerable to government bans affecting the price. The difference is with crypto and self-custody you can transact privately despite that (similarly to if you held cash, but holding lots of cash is again harder and more vulnerable to a single government’s stupidity).
If your dollars in a bank are frozen you can’t transact at all. Your self-custody BTC can’t be frozen on the blockchain, you retain a lot more ability to transact globally.
With fiat in a bank, you don’t have a chance since it just gets frozen and you don’t actually have custody. With crypto it’s more likely you can continue to transact.
It’s a matter of degree.
What I'm arguing is that this impact doesn't cause the price to be zero, requires global coordination to have a big impact, and that even in this case, the self-custody capability of crypto is still something better than the alternative (no access to any funds or any ability to transact). We're also discussing an extreme worst case (and even in that case it's still better than frozen non-custodial fiat funds).
Flagging wallets to exchanges also requires targeting and many people wouldn't get hit by this. There are also a lot of cases that benefit from self-custody in a world that doesn't have this extreme global coordination to sanction crypto.
Imagine the case where you're a random Ukrainian citizen in Russian occupied territory trying to get your wealth out across a hostile border. Your crypto wallet is not likely to be flagged to exchanges (even if it was most exchanges wouldn't care). You can memorize the seed words and get out safely with the ability to recreate your wealth on the other side.
This has already happened at least once: https://www.forbes.com/sites/tatianakoffman/2020/06/13/why-b...
This is probably why Chinese wealth leverages it to get around attempted controls by the ccp despite regulation.
Why? It is just as easy to regulate as any other tracked asset. Physical items are much harder to regulate.
China simply hasn't started enforcement.
Mostly because it’s harder to confiscate (more akin to a physical item in your possession)