Point well taken, but I think its a bridge too far for politicians to cross constitutionally. Its like saying to any company who makes any locked device (safe, front door lock, bank vualt / individual lock boxes) that the government shall have a key or reasonably be able to brute force access it, or that it shall not be lockable. The constitution protects these rights for us as individuals and our ability to use these products to protect our privacy.
The right of the people to be secure in their persons, houses, papers, and effects, against unreasonable searches and seizures, shall not be violated, and no warrants shall issue, but upon probable cause, supported by oath or affirmation, and particularly describing the place to be searched, and the persons or things to be seized.
A company doing it for us, as is the case today, is arguable constitutionally. Passing a law that says we as individuals are only afforded 4th amendment protections when the method of security used ensures that the government shall have a key or reasonably be able to brute force access it, or that it shall not be lockable in my opinion is unconstitutional. If legislation surfaces that outlaws companies providing means for users to encrypt their own data, that would have a significant economic impact as users as well as service providers (loosely defined as banking apps any any other app managing valued assets / money) no longer offer services on unsecured devices as they would have to be willing to own that risk of fraudulent access and financial loss if consumers were to continue to use them.