How is this so hard for you to understand, iMessage gets shoved in people's faces and is activated automatically. It's extremely anticompetitive and isolates people not on apples platform. It's far worse than anything microsoft did in the 90s.
All it does is improve the use experience for people who do use Apple’s platform. They are just as able to communicate with people who have SMS as they were before and vice versa. You are going to need to explain this ‘isolation’.
Literally billions of people use competing messaging apps such as WhatsApp or Facebook messenger.
- Switching operating systems doesn't prevent you from receiving messages in Facebook groups you were in.
I'm not going to respond again because I don't think you're reading my responses. If you can't understand that ask your parents or caretaker for help.