Fundamental principles are the most critical part of philosophy to get right since all inferences, deductions and applications of its principles depend on their truth, their defensibility, and their suitability as fundamentals. Unfortunately it is philosophy’s fundamentals that are often the most misunderstood or even the least developed, either because they have not been securely identified, their truth is taken for granted and therefore deemed unworthy of deeper attention, or they have been disfigured through filters foreign to that philosophy.
I suspect that one reason why Objectivism’s fundamentals are so frequently and persistently misconstrued, is the very fact that Objectivism actually has clearly stated fundamentals, affirmed in terms of conceptually irreducible primaries, while other philosophies typically have at best vague handling of fundamentals and essentially zero regard for conceptual irreducibility. For example, consider the question: What is the fundamental starting point of post-modernism? Or Dialectical Materialism? Or Existentialism? Or Hinduism? Or Christianity? Or Scientology? Etc. Are they truly fundamental, or do they take certain unstated premises for granted? Do their stated foundations consist in identifying general facts that are directly available to any thinker, or do they rest in authoritarian pronouncements, secret canons, or elements of stories passed down by prior generations?