These companies could disappear over night. Is being a monopoly for a decade really a big deal? It's completely over hyped how much control they have, for now they are dominant, but five years from now its entirely possible that they arent. Also, they have produced so much for the world of technology, essentially creating all of the big data infrastructure technology, and (bare with me here) react which is having a m…
They could also not disappear. Is being a monopoly forever really a big deal?
> they have produced so much for the world of technology
As did and do so many others. What of what they made could not have been made with ethical behavior, or more competition?
> they have produced so much for the world of technology [..] This whole monopoly business is so overplayed.
Nobody said a monopoly cannot have any positive effect besides the negative ones. Refuting one argument, and one that nobody even makes, doesn't prove that anything is "completely hyped". That would require not just refuting one actual argument, but all of them, hence "completely".
How would you compare it with the opportunity costs, with "what could have been instead?" We usually consider that zero, because it can't be simply measured. That doesn't mean there wouldn't have been anything, or just more Microsoft and IBM, so to speak. It's like weighing two things against each other, and the one scale is welded to the frame.
Insofar competition leads to innovation, your one argument [for a monopoly being good] kinda backfires. They did that with barely having to try; imagine what they could do if they did have to try.