None of what you said explains how Microsoft today (not 15 years ago, or in some hypothetical future) will have a monopoly before or after this acquisition.
By allowing MS to do this the courts are signing to the world that smaller companies shouldn’t even bother competing because they can never outspend MS’s war chest.
Which company would you have expected to compete in the console space in the foreseeable future that will have changed their minds because of this acquisition? I’m not aware of any, but I wouldn’t mind being shown that this is a real concern.
Consoles rely on 3rd party support to be successful. MS just bought out one of the largest 3rd party publishers and will no doubt use its control over it to deny/compromise support to its competitors. This is much larger than you think. To make it worse there is no real counter play for its competitors who aren’t as flushed with cash as they are.
