While I agree with most of what you said (about Google and Samsung), Apple is pretty clearly encouraging the stigma when it comes to iMessage. They wouldn't outright tell people to bully, but they are doing as much in an underhanded way.

• Tim Cook says the solution[1] to the issues is to have the people you are talking to change to an iPhone. Hard to see this as anything other than encouraging, or at least accepting bullying.
• Messages in iMessage used to be green, but when the blue messages were introduced, they changed the green ones to make them less readable and break their own guidelines[2]. There is no good reason to do this other than to encourage upset at green messages.
• The Epic vs Apple lawsuit made information public[3] that Apple purposefully doesn't make iMessage cross-platform in order to lock users in.

[1] https://9to5mac.com/2022/09/07/tim-cook-explains-why-apple-refuses-to-adopt-rcs-buy-your-mom-an-iphone/

[2] https://medium.com/@krvoller/how-iphone-violates-apples-accessibility-guidelines-6785172eb343

[3] https://www.thurrott.com/apple/248931/apple-didnt-bring-imessage-to-android-because-of-its-lock-in-strategy

Can you show media produced by Apple that encourages bullying?

That's some head-empty logic.

"Preferred Company doesn't do bad because they don't outright admit it!"