So, my understanding of this is that people are concerned that this acquisition is going to kill off competition?
I'm failing to see how. Call of Duty (imo) is a series that's due for the shelf and a new IP should take its place. I'm not a person who would call them a quality game at this point. There is Diablo 4 and also World of Warcraft where I could see them expanding the consumer base.
I'm probably missing something, but I really don't see the big issue with this one.