> Whereas users, and Google absolutely has the data for this, are probably mostly using bluetooh ear pods or headphones and so Google knows real users don't care.

Well... what it really means is most users don't care but that also means they probably don't care (at least not directly) if there is a headphone jack. Those who are using headphone jacks regularly absolutely do care though.

I'm not suggesting they haven't done a lot of market research here, I am sure they have. What I will say is that they should be careful of frog boiling themselves out of a market. Having a headphone jack is one of those things that differentiated the Pixel from an iPhone. Sure most users who prefer a Pixel to an iPhone probably won't jump over this one specific thing.... but the less differentiated they become over time the less sticky customers looking for something different to iPhones will be for them, and this won't easily show up in market research because they are asking things like "If we remove feature X would you buy a different phone? What if we remove Y?" but may not be asking "What if we remove X and we remove Y?"