Most of the world doesn’t even use iMessage, it’s all WhatsApp/messenger/WeChat. This controversy is such a nothing burger in comparison to App Store policies.

There’s plenty of cross platform chat clients out there and new ones sprouting up all the time. I have an iPhone and I only communicate with a handful of people on iMessage, it’s not even that great of a chat app and it’s hardly the moat that people make it out to be.