That's a strange characterization given that when you see a green bubble there was literally no way for them to have made it private. Even if Apple had jumped

That's a strange characterization given that when you see a green bubble there was literally no way for them to have made it private. Even if Apple had jumped on RCS at the same speed as Android did, and assuming that absolutely every SMS user switched over promptly, there's no end-to-end encryption built into that protocol either. Given the exact thing they're being sued for here, I can't imagine that the approach Google has taken with RCS of "we've built special end-to-end stuff into our first party messaging app that'll work when you're talking to other people using that app" would have helped them. Even if they also made an iMessage app for Android, that doesn't seem to address your complaint. Or no more than "you could use Signal instead" does.