Speculative tie-in? Google's claims are that Apple profits from peer pressure and bullying, I'm not sure but I would think that the people most bullied would be teens and then logically some would commit suicide because of it, I'm sure other bullying would be part of the bullying "package" if that appeases you.

It doesn't have to be RCS but Apple has made clear they don't want any interoperability, so that seems like bad faith.