All ecosystems have some sort of barrier. Why not demand Microsoft share all code with Open Office and the Mac productivity suite? Doesn't Microsoft have a dominance in productivity via Word, Excel and PowerPoint? I would consider that to be an "essential service" and not iMessage.
How can any reasonable person blame Apple given its far, far lower market share? By your own definition, shouldn't Android be the one to force it's platform to open, for example to Samsung's Tizen? And how did Google respond to Tizen - by forcing Tizen's closure!
https://www.theverge.com/2014/7/17/5913313/google-and-samsung-reportedly-fighting-over-smartwatches
https://en.wikipedia.org/wiki/Tizen#:~:text=On December 31, 2021, the,its Galaxy Watch 4 smartwatches.
So, the Google crybaby that complains about iMessage couldn't handle competition via Samsung.
Where was the EU when this happened? The brave EU dictators were asleep? Why not go after Google for anti-competitive measures? Doesn't that make more sense given market dominance by Android?
This is
not about consumer choice. It's about the Apple ecosystem and Google and EU's attempt to break it, each for different reasons. It's pathetic.