It's impossible to "seize" bitcoin. How will they do that? Waterboard you until you give up your private key? Your private reserve is totally up to the company and investors. It has nothing to do with the government.
The government will be able to seize the reserves of bitcoins from companies if the laws on illegal ownership of cryptocurrencies are adopted!
Also if the government can prove the illegality or fraud of the organization, it will also be able to seize the bitcoins...
It seems to me that the state can do anything it wants, especially if it is a totalitarian state...
Look at my comment above....
This will never happen. The government struggles to evict and keep violent criminals behind bars how do you think they going to deal with this?