Why has it been suggested that athenian direct democracy was a brilliant failure?

Some people were always criticizing Athenian democracy for various reasons. Here we will see the ancient and modern views about democratic failure:

a) Direct democracy gives all citizens the power to vote but ancient thinkers thought that all citizens could not bear the responsibility comes with the power to rule.

b) Modern thinkers consider it a total failure because the citizens were too inclusive and does not include women, slaves, and foreigners.

evaluate the extent to which the seven years' war (french and indian war, 1754–1763) marked a turning point in american relations with great britain, analyzing what changed and what stayed the same from the period before the war to the period after it.

(202 bc - 220 ad) dynasty started by lui bang; a great and long-lasting rule, it discarded the harsh policies of the qin dynasty and adopted confucian principles; han rulers chose officials who passed the civil service exams rather than birth; it was a time of prosperity