As much as I detest RCS, those unenroll things are necessary for migration. Because it's for migration it can't be on device (you're migrating so you may no lon

As much as I detest RCS, those unenroll things are necessary for migration. Because it's for migration it can't be on device (you're migrating so you may no longer have a device). I would guess that your devices will notify you if someone maliciously disables iMessage for you phone#, and maybe google does the same?