Should the US just return to having fiefs? (It is almost that way now)?

In the Middle Ages, land was distributed by landowners (lords) into units called fiefs. Fiefs were given to poorer citizens, and in return, the citizens pledged military assistance to the lord. The fall of this social hierarchy led to the rise of the middle class.

Should the US just return to having fiefs? (It is almost that way now)?
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