Unless you build your own laptop/desktop from raw materials, you are buying from a corporation. Anyone is free to buy a laptop with a physical escape key.

The point is: the more you invest in a propriety ecosystem, developing for a certain company's products on that same company's products, the less flexibility and freedom you have to change.

Apple's primary goal is consumer adoption; developer needs are necessarily secondary. To demand that Apple cater to the latter misunderstands the company's priorities.

Fundamentally, this sounds like a generic 'anti-corporation' rant. "That's what you get for trusting The Man, man!"

It's an anti-idiot factory rant. In the tech field, it's a fact at this point, you cannot trust the man. It's demonstrated almost daily. It won't change though, it takes about a decade of getting burned before getting fed up with it and by then you're outside the target market, but the next round of idiots are already in line.

I do not think it's about buying nothing from corporations, but rather having put all of your belongings into the basket of one company.

That's the argument: either suffer intensely once/twice with Apple or spread your suffering evenly over 10 years with Linux.