You make the case that it’s to the benefit of their users to allow multiple browser engines. I am personally not convinced by your case, for the reasons stated

You make the case that it’s to the benefit of their users to allow multiple browser engines. I am personally not convinced by your case, for the reasons stated above. I do not expect Apple to be convinced by your case either. You may choose here to strengthen your argument, but your declaration that it’s hopeless to do so is of no help in that regard. If you wish to continue, I’m willing to listen.