Apparently, blind adherence to the rule that age and wisdom are directly related can have negative affects as well.
Sure, I did not mean to suggest Confucianism always provides optimal results (for whatever optimum one may be seeking). I only meant that misunderstanding deference to one's elders may not be an issue of hate.
That said, my experience with this aspect of Confucianism--of being deferential to one's elders--has little to do with wisdom. It's simply the way hierarchy is established and observed among Koreans. Many times, younger Koreans will complain to their same-age peers when selfish, greedy, and foolish elders are not present to be offended.
For example, when an elder asks juniors to work with little to no compensation, the younger group may (will!) grouse about how greedy and insufferable the elder is (a direct confrontation is likely to cause drama and this, too, happens very frequently). Confucianism can "prescribe" roles for both inter- and intragenerational behavior, in this case bonding members of one group while enabling the "superior" to extract a profit.
Not to say such roles are good or bad. My take is that Confucianism produces a different set of cultural effects than, say, Western Individualism. Declaring one approach to be "better" than the other is not the same as trying to understand and describe how different ideologies condition cultural behavior.