Now, my friends, if you were off on an island where there were 100 lunches, you could not let one man eat up the hundred lunches, or take the hundred lunches and not let anybody else eat any of them. If you did, there would not be anything else for the balance of the people to consume
In this context, Huey is suggesting that everyone should have close to the same amount if not the same amount of wealth so the people can live comfortably. For " Every man a king", it means everyone will live whereby they won't need or depend on anybody for anything because their need will be met.