So you accrue wealth and can never use it. What’s the point?

Plenty of ways to use crypto wealth. It isn't that hard hard go from accessing Tor on a public WiFi, to say cashing out $100k in physical cash.

I think you're missing the point entirely. The government can't seize your virtual coins, but the only point of money is to spend it on actual goods, which the government definitely can seize.

How is this different than burying gold?

A. You can store redundant copies in various secret locations.

B. To bury gold you must transport the valuable property in meat space to your hiding spot after acquiring it. With cryptocurrency, you hide the secrets before they have value and transfer the funds to them without new data actually traveling to the hiding spot, electronically or physically.