@Nesh Sony has purchased a dozen video game developers in the past four years. In the past they've purchased Media Molecule, Sucker Punch and Guerrilla Games. The idea that Sony Playstation is some kind of "home grown/organic" company is absurd. They buy studios, they pay for exclusives, they pay for IP rights. Microsoft is a huge software company with a cloud business. Sony is a giant media conglomerate and hardware company. There are no scrappy grassroots competitors in this fight.
Microsoft is particularly awful at developing games over the last ten years, at least the big ones. They've had things recently like Pentiment, which are very cool, but vastly different in market size than Spider-Man, Call of Duty etc. The only real difference between Microsoft and Sony is Microsoft sucks at making big games and Sony doesn't.
The aquisitions discussion really comes down to political takes, and whether you think it's ok for big companies to buy smaller companies, though I'd argue the behaviour of Microsoft and Sony is essentially the same.