There’s no substitute for having open systems that aren’t cryptographically locked down by the manufacturer.
Open systems are great and all in the idea, but the facts are that for profit companies do the research and produce most of the things.
This should be illegal. Any politicians who run on [economically, financially] doing to these companies what is being done to Russia and Iran, if they refuse to immediately publish their hardware private keys, I will vote for. Up to and including jailing boards, stiffing bond and equity holders, and selling their assets as scrap, if they choose to purge their keys to prevent disclosure or if disclosure is impossible due to technical design. Maybe if a few trillion dollars worth of businesses suddenly vaporize into legal smoke, the remainders will start behaving for the next hundred years...