Thankfully, there is a good amount of space between money under mattresses and a government controlled economy. Your comment is a giant straw man. Canadian and EU systems are private ones and the government has little or no power to directly intervene, short of law enforcement.

The idea that eliminating paper is some sort of boogeyman from Revelations is about as silly as the idea that holding on to your Glock allows you defend your rights against a corrupt government. Neither actually offer any type of protection against these particular issues.

Unless you are wandering around with $20K in cash everyday, your bank account is still subject to the very things you seem to be afraid of. The only thing that changes in a mostly cashless society is your access to your bank account. If the government is going to freeze your account, it matters little if you have a chip card or need to go to the teller.

Thankfully, we in the west have moved most of the management of this to the private sector, and require things like warrants before any real action is done. That can and is an issue at times, but has little effect on the day to day implementation of one method over another.