Large tech companies have the resources to clone any single piece of software engineering or hardware engineering. The marginal cost of developing a new "feature" of their existing "product" is so small in the grand scheme of things. As long as you have software engineers, money, and an idea, you can make something like sidecar real; this company needed to create all three from scratch, Apple has oodles of the first two and can easily steal ideas for the third. With that being said, if the only definition of a product is something that Apple can't replicate, then I'm afraid we are damn near out of products.

(Again, this applies to every large tech company, not just apple)

You're using this trope entirely out of context.

There are only handful of companies (Google and FB come to mind) that make products for Apple's platform that Apple can't easily replicate itself.

That seems unnecessarily cheeky. If you can make money on it, its a product, if someone builds it in to their product line, perhaps they did it better (though not always).

"Easily" in this case is a trillion dollar company throwing multiples of what you could without really blinking.

Spending $10M worth of resources on a project within Apple is not even notable, meanwhile that's a healthy series A for a startup.

If what you have is a business that pays the teams salaries, then what you built is by definition a product, not a feature.

Maybe the government should get in the way then.