Att won’t make money off that unless they offer it as a paid service. No reason to give that away for free and the other cell carriers can just pay off (bribe with campaign contributions) legislators to understand encryption is “too costly to implement at such a scale”

They can just claim archived or deleted messages don’t qualify for end to end encryption in their privacy policy or something equally vague. If they invent their own program they can invent the loophole on how the data is processed