Wrong trigger. The essayist concludes that one shouldn’t support certain political systems because they might lead people to prefer to establish totalitarian regimes, not because they will inevitably lead to the establishment of totalitarian regimes.

This leads to the wrong conclusion. The essayist concludes that one shouldn’t support political systems that allow extreme freedom. (B) says instead that one shouldn’t expect everyone to thrive in systems that maximize freedom. This doesn’t help justify the essayist’s conclusion.

Wrong trigger. (C)’s contrapositive says that if a system doesn’t give people the freedom to make wise choices, then one shouldn’t support it. But systems that allow extreme freedom do give people the freedom to make wise choices; people just often make unwise choices instead.

Political systems that allow extreme freedom have destructive consequences that could lead people to prefer totalitarian regimes. If one should not support systems whose consequences could lead to this, then one should not support political systems that allow extreme freedom.

The essayist says it’s unrealistic to expect people with extreme freedom to thrive. But he never suggests that political systems that allow extreme freedom are themselves based on unrealistic expectations of behavior. So, (E) doesn’t explain why one shouldn’t support these systems.