this would be terrible for the industry and you know it. Sony may be #1 in consoles but MSs other revenues dwarf it and Sony won't exist in 10 years if MS buys up all third party content.I think there are a number of reasons why that wouldn't be realistic in the gaming industry.
MS legally can't buy everyone, there would be more pushback with any future acquisitions. There's no way they could buy Take Two or EA after this.
There are tons of studios in the world. Embracer has 131 studios. There are still plenty of independent developers out there.
Sony is still making itself plenty of exclusive deals.
Gamepass itself might be disruptive, but Sony already has a similar service and they could push it more.