I think efuses being blown by device manufacturers should be illegal.
I think bootloaders that don't allow the device owner to run whatever software they want should be illegal.
I think device owners should be permitted to repair their devices without losing functionality because of DRM embedded in the parts themselves.
I think a physical switch, exercisable only with physical access, should be present on locked-down devices to allow the owner to exercise their ownership over the device. If that means that "attestation" functionality breaks and that causes some third-party software to "break" so-be it.
(I think the problem with banks, etc, requiring "trusted" devices is also in the realm of consumer protection, probably in banking regulation. I haven't thought about it deeply.)