The purpose of a computer -- as opposed to some other tool -- is that it has the flexibility (by being programmed) to do many different things, including things conceived of by nobody but the user. A computer that can't be programmed is fundamentally not fit for purpose. Apple is selling devices that they have intentionally broken.
So that's the *purpose* of every single computer you own? Bully for you. That is not the purpose of every single computer *I* own. And I guarantee you it's not the purpose of every single computer most people own. What's more your statement is false on its face. iPads, etc *can* be programmed -- by anyone with the skill and tools to do so. You just need specific hardware and software and services in order to do so. Just because you're not willing to tool up for the task doesn't make it Apple's problem. It's your problem and nobody else's. I'm sure there are many tasks I can't make my iPad do even with all the effort and knowledge in the world.. but hey.. I can't make my car fly like and aeroplane either. That's life.