The actual problem is that no-one is really in control
Undoubtedly, your thesis that there isn't a man or even a cabal "behind the curtain" is correct; the current situation is emergent from a multitude of choices made by a multitude of people, who generally weren't and aren't guided by any long-term plan or even much of any long-term vision. I suspect, however, that most of them were and are guided by dubious but widespread beliefs and sentiments, such as that bigger is better, that "popular" and "valuable" are synonyms, or that white people are naturally superior to non-white people (a favorite of old-school American imperialists). In other words, it isn't just a few people, but if you squint, it may be mostly a few kinds of people.
It’s great that somebody who knows something finally wrote a book about this! (Or maybe there are other books and I am unaware of them...so it’s great that somebody wrote a book about this that I have heard of.) I suspect this book is going to get talked about a LOT...Unfortunately, if you had made it a nefarious conspiracy people would probably talk about it more! But overall much better that you are not doing that but instead plausibly explaining how things happen (which is of course more useful in concrete terms but maybe less exciting to people rhetorically).