Thanks for clarifying.
I have recently had the experiences of meeting more than one person (not super-technical engineers, but tech-literate IT people) who were very negative about even the idea of owning Apple products, but also without prompting made statements like "I hate what Google is becoming", and "everyone used to like them but now they're evil". So I can assure you the sentiments aren't limited to such a small community.
Even if this were not so, complex criticisms of a technology business would reasonably be expected to originate within a skilled technical community with a demonstrated preference for an alternative. So if these critiques did happen to be limited to this community, this would still be no reason to conclude that they do not reflect Google's behavior.
Your statements like: And the reason is clear: since 2008 Android has represented the biggest single threat to Apple's increasing dominance. are clearly an ad-hominem because you are implying that their criticisms stem from loyalty to Apple as a company, as opposed to them actually reasoning that Google's products and strategies have become counter to their specific values.
I'd say it's just as reasonable to suggest that Android amongst other things has caused Google itself to change its values, and it is this change of values that people are calling out.
Saying things like "none of this speaks to the legitimacy of.." and "Some of it is deserved.." does nothing to mitigate the ad-hominem.
If the criticism is legitimate, or the statements are deserved, then it doesn't matter what phone someone has in their pocket.