And you come across as a Google fanboy by jumping up and down about RCS despite interoperability being a mess for carriers that haven't bought Google's RCS stac

And you come across as a Google fanboy by jumping up and down about RCS despite interoperability being a mess for carriers that haven't bought Google's RCS stack. I'm not talking about a "singular aspect". MMS supports read receipts, modern video codecs, proper group messaging, and reasonably sized attachments. These are all features that carriers decided not to implement. Your interoperability problems are an MMS implementation issue, nothing more. Meanwhile RCS, which exists solely to monetize users, largely suffers the same fate as MMS even with the so-called Universal Profile. The solution for carriers in North America at least has been to buy into the Google stack. Ergo your complaints can be summed up as: Apple sucks because telcos did a shit job with MMS because they haven't implemented Google's RCS.