Nothing you mentioned actually responds to how a single person pooling resources to themselves without negotiating with others is the same thing as people having to negotiate with each other.
Re time played: you have yet to explain how 5 peoples time is the same thing as one persons time. You are basically saying 5 peoples time is the same thing as 1 person + 4 drones. That is so divorced from reality that you cant even make the argument for more than a sentence of the statement.
The coordination comment is also not considering the fact that 4 other people will take the loot and want to negotiate on its uses while a multiboxer does not have to.
If a run gives a multiboxer 50 gold per player per run then the MBer is effectively gaining 250 gold per run. Monopolizing all the gains for every single run does not happen in reality even in situations that a person negotiated a contract with others because most people have to get something for themselves at some point. Except multiboxers because they have the distinct advantage of NEVER having to negotiate with anyone for resources.
Everything gained from these runs are direct in game costs and gains.
Your statements are so illogical you fail to even discuss them to just give an initial statement.
Before Row Boats had engines they required people to manually row to push the boat forward. Then came the engine that did most of the manual labor. You would be that guy telling boat buyers that the old manual row boat that requires a team of people is the same thing as an automated machine boat that propels the engine forward while only needing one person. A total con artist.