If Sasuke wants to everything: Like what is a clan? What is a village? what is a shinobi? (See:
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) He needs to go to a impartial observer . . . That shld not include only the Uchiha as they will have biased views and champion the cause of the clan.
Also oro said that 'them' in a way that they already exists and so are not ressurected people + Oro called Sasuke a child in their contex which implies that they are old and wise which can not be the Uchiha clan alone. (See:
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)