I think the case for why strong encryption is important is much clearer than why untraceable financial instruments are important and I don't think it's super compelling to argue that these things are actually the same, even if your opposition to government control is the same. I think it's actually pretty clear that almost all people are not capable of secure and reliable self-custody and would be better off with an…
I think it makes sense to start from the idea that you should be able to transfer funds to someone, like $100 to your mother, without needing the government or a megacorp to facilitate it. The same way I can gift my TV to my mom. Whether that's cash or cryptocurrency doesn't seem to matter since your argument would also apply to cash.
That's not actually an argument for anyone who doesn't share your assumptions though and is largely just lazy thinking.
Cash also has physical limitations that make large cross-border transactions hard, which crypto does not.