Making all bubbles green

The point of the color is so the user knows whether a message is encrypted or not.

Yep, and the only people whose messages arent encrypted are android users due to apples proprietary protocol.

So why do they leave the kids getting bullied for green bubbles? Because its good advertising, and it makes kids ask their parents for iPhones.

They could very easily have made all bubbles green, and put a tiny padlock icon either next to the message, or even next to the user profile.

You seem to be under the misapprehension that kids actually care about the reasons why they bully other kids, and they don't just do it because they're assholes who just want to bully someone and haven't learned how to treat each other yet.

And every time I answer your questions logically and correctly you seem to ignore it and change the angle of what you are saying.

No. The original complaint blamed Apple because kids bully each other. If you think kids bully each other because of the color of a message bubble then you don't understand kids. The idea that the problem would be solved by the feature being graphically different is laughably naive. Suppose that Apple made it so that encrypted and unencrypted messages were indistinguishable. Do you honestly think that would result in a net reduction in bullying? Because I think bullies just latch onto any reason they can to torment their victims.