> we have safety checks for that too with anti-trust policy.

Yeah I remember when Microsoft came perilously close to dominating the desktop OS market and using that dominance to push their other products, like their suite of Office software. Fortunately the safety checks of anti-trust policy kicked in and they were forced to break up the company to prevent such abuses from happening in the future.

The same thing routinely happens when ISP, TV, and media companies merge:

https://en.wikipedia.org/wiki/Zero-rating#Existing_programs

https://fortune.com/longform/media-company-ownership-consoli...