Money can only be seized if the safe is found. And the combination is handed over by a willing party.
The difference is that money is actually more secure because you don't have a public ledger telling you that it exists and who owns it and how much of it they own as you do with the public cryptos like Bitcoin and Ethereum.
Crypto is magnitudes more accessible. I can travel to any country in the world with an encrypted usb drive of my seed words, and no one is wiser. OR even upload a file to the internet and forego carrying anything at all. A government can try to censor transactions belonging to an address, but we don't have good precedent to see how the network will behave. Miners in other jurisdictions have no reason to follow someone else's censorship.
