I'd say: the products cease to be theirs when a someone buys them, and the consumer is the one who benefits from being able to choose competitor's products.
Toyota did a lot of work designing my car, but they don't get a monopoly on selling me carpet mats. It's my car and I'll put what I want in there.
> I am sure you can find open{source|hardware} alternative if you don't wish to support Phillips anymore.
True, but if you bought something expecting interoperability and it was "upgraded" to be closed, you'd have a right to be upset.