If you think that Bitcoin is harder to seize than gold, you are probably wrong. At least according to the data.
In the history of Bitcoin's existence, much much more Bitcoin has been seized than Gold. You don't need to compromise cryptographic primitives to seize Bitcoin.
In the past 10 years, ≈$90B in Bitcoin has been seized vs ≈$3B for gold (using today's market prices)
Gold is compact enough that you can pack a fortune in a suitcase by most people's standards. $90B is a lot of money though so you are talking 700 metric tons which is a lot.
But the total amount of gold seized worldwide is much smaller than Bitcoin (using today's spot prices). There is a popular argument that Bitcoin is better than gold because it's harder/impossible to seize, which is simply not true.
Okay, I don't think there is way to change it now