If they really were they would turn it off. And stop using Gmail and Android.
The overwhelming majority of people don't care about digital privacy because the cost is opaque to them.
Also, telemetry when done right isn't "spying". Again, it is anonymized and used to see, for example, where the hot paths and paper cuts in applications are.
i think that in a free society, you should be able to sell the product you want to sell. but, you should give information of what you are selling to the customer.
if it has telemetry, then it is a tool the customer buys, that also has the function of listening and reporting to others, how it is being used.
you want to sell it - no problem. but tell the customer, "look, this is bugged, and it's going to tell me what you are doing. but it's a great product." anything with opt-out telemetry needs a big version of that warning on the top of the page.
personally i am not a buyer. but that's my preference.