Overall, your analysis is good but not original. I don't mean that as an insult. More to the point, think Orwell and "1984". There were those in our past who had a vision of the present and were able to extrapolate it to the future.
When you focus on the arguments in support of his position while explaining how much beyond his vision things have gone, the argument is strong and well buttressed by references. One major problem with the essay is the digression into political bias rather than a focus on the problem as a whole. Drop all of the references to contemporary figures such as Obama and Clinton. They aren't relevant to the discussion and will easily relegate your essay to the "librul talkin' points" category for many readers. The focus is not on what is going on now but rather on the trend over time.
Also keep in mind that most people will not know many of the references by mere mention. Either footnoting or supplying in-line links to the reference material helps to build your case.
Most importantly, with any writing, is editing by subtraction. If you can say it in ten words instead of twenty, do it. The essay is fairly long for what you are trying to say and the message becomes diluted with tangential threads of thought that aren't directly germane to the point you are trying to make.
I'm impressed with your skill and rhetorical technique. Please consider these criticisms to be constructive and not denigrating.
HH
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