I’m still of the opinion that the basic message app should only be SMS.
Then anything else should be its own thing. Mixing the two is a recipe for disaster, where it’s a consumer product.
Counterpoint: SMS shouldn’t exist, and RCS is our best shot at replacing it right now
What? SMS is a proven standard that works reliably. Why do we need to replace that? I tried RCS twice, in both cases the other end did not receive my message or at a later time. Even if SMS needed replacement, RCS is not it.

SMS is a proven standard that works reliably.

lol

I tried RCS twice, in both cases the other end did not receive my message or at a later time.

This is not indicative of how well RCS will work as its widespread adoption continues to mature. I do understand your frustration; I just would expect the growing pains to last much longer. Remember how shitty USB C was for the first few years?

Counterpoint: RCS shouldn’t exist either. We should use something that isn’t tied to our mobile service providers.
This 100%. I don’t understand why anyone wants to use a phone number as an identity.

SMS has one feature nothing else does. It’s not data per se. if you can ping a tower you can get a message out. You can’t do that with anything else.

Makes a difference when you’re out in BFE.