Mac, that's a fantastic question, really. And, I'm grappling with how to answer it briefly. But, I can't.

Let me oversimplify it, though, this way, just to keep from overboring you or anyone else.
The books that I have read, my own studies in getting my degree in communications, my own observations of actual conduct over time, inform my opinions about all of this stuff. Not to break into the "algebra" of it all, or even that I could do it in a way to persuade anyone that my view is correct, but suffice it to say that I see three factors that all of this boils down to:
1. The majority of the voting public is incapable of rational thought. Rather than having minds framed by the Enlightenment and the Age of Reason, they are framed by the Age of Imagery and technologies that defy the thought-processes encouraged by the printed-on-paper word and yield to the disjointed and emotive processes of instant communication. These technologies predate the internet by decades, were in place before the internet, and are aggravated by it in the generations of people who are learning about the world chiefly through the newer technologies. Thinking is image based, emotional, irrational, lacking the ability to engage in sound reasoning and not even caring about the difference.
2. Related to #1, the population of voters is too largely absorbed by entertainments and has never known the adversity of want. Even among the poor, those who have the greatest reason to desire to participate in a system that liberates people and property, the culture is propagated wtih enough distraction and illusions of "luxury" (i.e., the drug dealer lifestyle, the prospect of sustenance without labor, the subsidization of certain immediately unattainable "wants") so that people pursue other goals than their own advancement with liberty and instead pursue stereotypes encouraged by the powers that be and which entrap the poor into lives of enabled hopelessness. For those not so dependent on government to provide these niceties for them, they are killed by another kindness: parents who follow the same stereotypically desired goals and a compulsory education system that defines what "success" is in terms of feelings and expression as opposed to productivity, labor, knowledge and that set of traditionally Judeo-Christian virtues. I'll add that one guilty accessory is the church, which has adopted many of the paradigms (I'll pay the royalty later, Rambo

) for instruction from the current culture of education and has failed to counteract these factors in the generations of Christian
teachers and schools that currently have our kids.
3. Lack of civics understanding. Quickly, people don't get how America works or how it came to be this way. They don't really want to know. They don't even know that they don't know, many of them, and if you try and shed a light on it, they don't care that they don't know that they don't know. The glue that made America such a great democracy was a shared, popular vision of what America was supposed to be and how so, and that vision was one of freedom, personal liberty, liberty of property. People cared because their stakes in the outcome of the government's operations were tied to their own work. Now, you can choose to never lift a finger and vote anyway. That choice, exercised over and over again times millions of people who not only do not produce but do not care to know why they ought to produce, has turned into an overwhelming tool to empower the big-government interests that now hold us all by the hairs on the napes of our necks.
Now, one man's hope is admirable. The hope of millions is infinitely more so. But, what is the reason for the hope? How does that hope turn into rolling back government as opposed to simply changing it from one set of big-government hands (Democrats) to another (Republicans)? What does that hope look like? Because, while people are mad right now, they're still pretty ignorant and indifferent about the things that matter the absolute most.
So much for brevity.
Human government bears the same relation to hell as the church bears to heaven. (David Lipscomb, On Civil Government, 72).