It's quite reasonable for other manufacturers to want to replace the default email client and mapping apps, and to decide not to include YouTube.
Of course, that means less traffic to Google's apps, which means less ad revenue for Google, so the price might go up. That's reasonable too.
Regarding the tracking inside Android apps... so long as the app makers have a choice, that's fine. I don't think anyone is stopping other people from offering an equivalent service to the app makers?
Biting the hand that feeds IT
