A couple of statistical facts may help lend some understanding to the current situation.
An IQ (Intelligence Quotient) of 100 is the statistical norm. It's at the high point in a standard deviation Bell curve. An equal number of folks are below that center point as are above it. Statistically on average, one out of two are "below average" in intelligence. We call these people Democrats. An equal number of folk are "above average" in intelligence. We call these people by many names including Republicans, Libertarians, No Party Affiliation, Tea Party, and others. So, although the above average group is every bit as large as the below average group in numbers, we are reduced in political power because we affiliate in a wide variety of ways to suit our particular political convictions. So, the more intelligent groups are frequently defeated by a unified group of essentially stupid people who have no particular conviction other than "free stuff," to pick a particularly current issue.
As a society, we tend to group together with those of similar thoughts and convictions. High IQ types rarely attach to low IQ groups. This makes brighter types less easily maneuvered because our friends and cohorts will tend to call us on anything we say that may be stupid or counter to proven fact. For example, we might say something like: Socialism is a wise and fair form of government. Immediately someone will point out that it is inherently unfair, has never worked anywhere, and only rewards those who would do less while taking from those who would do more. See, being smarter is self-correcting.
Stupid people, on the other hand, may say something like: I like lots of free stuff from the government. None of their cohorts are bright enough to understand that nothing is free, someone always pays, and it's usually the lower economic class that pays the most. Still, free stuff looks good so the whole gang of stupid people start yelling that they want free stuff and without fail, some politico will stand up and claim to be the one who will give them the most free stuff, and that's the one who gets elected.
It has always been thus. Yet, I fear that the statistical center in the IQ spectrum is drifting to the lower side. This may mean that we are producing more stupid people than intelligent types. You can look around and see the ones doing the most breeding are firmly on the side of the stupid types. When the stupid types become a real majority, we are doomed as a nation and quite possibly as a planet.
I hope this clears things up for you.
Crusader Rabbit