If Apple was so good that men voluntarily gave them 90% market share you’d call them a monopoly, though it was freely given. Now if they acted immorally, they ought to be reprimanded, but you demanding freedom by coercion is immoral.
The rules were made by representatives voluntarily elected by the people and are an expression of their free will.
It is not immoral. They are open and upfront before you buy the device. I personally buy an iPhone because of the walls.
Keep in mind a village/castle with protective walls is not a prison.
I'm sure Richard the Lionheart would've disagreed with you while locked up in Dürnstein castle.
The walls are only good if you're the one who controls access.