No. The dictatorship of the gentry had many conditions that are not met today.
Hereditary tradition of nobility: Before the Han Dynasty, there was a long history of hereditary official positions and hereditary status of nobility. Today this history has been interrupted for more than a thousand years.
Cultural Monopoly: The Eastern Han Dynasty opened Ming Jing Ke to obtain scholars, and some large families were able to monopolize classics education even when education was not widespread. Not possible today.
Identity monopoly: Nobles do not intermarry, and do not admit new people to join. During the Southern Dynasties, neither the emperor's favorites nor the queen mother's relatives were allowed to join the gentry. I was even insulted when I went to a nobleman's house. Today's nobles can actually marry beautiful actresses, which was unimaginable in ancient times.
Election drawbacks: The nine-rank Zhongzheng system allows the gentry to monopolize the right to evaluate, and thus monopolize the selection of central officials. No matter how bad today's GDP official selection is, it is still much better than that of the ninth grade.
Local autonomy: At the end of the Eastern Han Dynasty, Liu Yan proposed the establishment of prefectures, which created conditions for the gentry to form local forces. Today, the party committee and the government have dual leadership and restrict each other.
Lack of preventive measures: In later generations, there were avoidance regulations for officials to try not to serve in their hometowns, and there were also term limits. Before these regulations, gentry could monopolize local power for a long time.
Lack of countermeasures: At that time, the imperial court was controlled by the nobles. Later, when officials from the imperial examination resisted, the situation changed.
To sum up, it is impossible for the nobles to come back. In addition, the hereditary inheritance you see now only lasts two or three generations. The ancients said that a man can only be rich for three generations, but a gentleman will be rich for five generations. In other words, wealth is passed down to three generations, and wealth is passed down to five generations. Anyone who does not exceed this number will not be considered a noble clan to reappear. Compare the Hongnong Yang family and the Qinghe Cui family. They are both noble families with more than 500 years of history.