The extent of such infiltration is enormous: most people in the Obama's administration, and even more so in the Dem Congress, are a mixture of fascists (in the Mussolini style --- leaving property where it is but chaining and binding it by regulation, taxation, etc.) and Marxist (nationalize means of production, let the "people" own that property, only then will "social justice" will be achieved).
I quite agree with your assessment. The problem with the original article is that the author is sloppy in his definitions. One moment he is speaking of an old-fashioned 1950s Soviet style communist infiltration of the American government such as we saw in the person of and in the next breath he is talking about the kind of infiltration by people we used to describe as "fellow travelers" or "useful idiots."
My problem with the sloppy definition is I fear it is used as a cover for inadequate proof of real, conventionally defined communism yet the author wants to arouse the emotional reaction the invocation of such an image is sure to produce. This is not to say that the infiltration by such people, however defined, is not mortally dangerous to the Republic, it is. But it is not a J. Edgar Hoover defined communism that we used to know and understand, contrary to the sweeping assertion of the author who is too free with the use of the word "Commies."
I quite agree with your assertions about the culture, in fact, I have posted countless times on the baleful influence of The Frankfurt School on culture and, through the culture, on politics. I have observed that The Frankfurt School has so insidiously indoctrinated our culture that we do not even know that it's explicit purpose is to tear down the culture, even our epistemology, to pave the way for good, old-fashioned, J. Edgar Hoover style communism.
Thanks for your thoughtful post.
