If this were to happen, as crazy as it sounds, it's not going to do anything, as other members have said. Perhaps some dislike those hardware manufacturers that should have been fulfilling their role as a reliable one.
This would just be reputational consequences for the manufacturers. Nothing else.
So the dependency on them for security is baseless ?
A hardware wallet provides enhanced security and makes it difficult for your coins to be stolen by common online threats like hacks and malware attacks. Even when you use these wallets, your funds are saved in the blockchain and not the hardware wallet. Even when such a wallet has issues, users can easily import the wallet into a working one. You don't depend solely on the hardware wallet for security, you still have a major role to play.