Why still cling to the left - right paradigm?

Question

This is in reference to a question I'd posed earlier - Why do so many individuals still cling to yesteryear's political paradigm that the republicans and democrats are two different parties with a real, principled difference of opinion as to how the country should be run? Isn't it obvious that the entire Liberal / Conservative idea is broken, and that at the top both sides of the "fence" are controlled, in tandem, from the top by the same companies and think-tanks (Such as the Bilderbergers)?
In response to my last question, HicHefHeidi blamed capitalism for everything wrong with our country. Read The Wealth of Nations by Adam Smith or any Ayn Rand. You'll learn that what's happening today with multinational consortiums of industry and government is NOT capitalism - it's totalitarianism. Communism was invented as an antithesis by capitalists to create a conflict - which only the New World Order can solve. D or R, it's 2 mgmt teams after the CEO position of slavery, Inc! INFOWARS.COM

Answer 1

In addition to the answer I posted on your other version of this question, I am also curious about the strength of the general population's belief that there is a strong distinction/line between commercial and government interests. Likewise, I'm interested in their mild interest in the congressional corruption scandals and the campagin finance legislation. Yesteryears political paradigm is I think marketed by the parties of today to distract from the value empty activities the engage in today.