If that's the argument everyone should boycott all Google products.
Very true, but you can start with the egregious violations such as AMP.
Or just not use new ones that actively make the internet worse.
Plus pageviews are done on Google's servers, so Bing doesn't know which website has many views and which doesn't.
How does Bing know it for non-AMP views?
A lot of websites would have a bing ads tracking Javascript.
You're right - Bing can't. Google knows a website's pageviews because it can cleverly cross information between the search engine, Google Analytics and Google Map's by-foot frequentation of shops (for shops and customers with tracking allowed). I'm just underlining that not owning a good share of all 3 of those may make it much harder for future competitors to enter the market.