You’re fooling yourself if you don’t think the government has a dozen other ways to backdoor you. Heck they basically just have packet scanners sitting on the networks of all the major telecoms, and almost certainly have compromised SSL root signing keys so they can trivially decrypt your traffic. Anything that goes over the network is fair game.

Love it or not, we live in a police state enforced by surveillance. Most Americans are just waking up to this because they’re not a member of a population actively oppressed by the police. Socialist / anarchist / labor communities that are more than shitposting groups meet almost exclusively in-person because their communications have long been targeted by law enforcement.