does the royal mint which prints money and bashes out coins add security 2 factor authentication to stock exchanges.

NO
its upto the exchanges to protect the customers funds.
its upto banks to have an insurance policy
its up to the owner of the corporations to follow the law and be honourable.

the issue is not the protocol of bitcoin
the issue is not the law
the issue is that too man people do not self regulate and manage their own funds, and trust entities they have not researched, have not met and do not know enough info about to slap them with a wet fish face to face if they do you wrong