There's a good deal of insight and wisdom here! I would encourage you to think deeply about how to arrange large-scale societies in a way compatible with the flourishing of its members, given how people in reality actually can behave. Most people never manage, including, apparently, many of the people whose ideas you laud--but you can still take the insights that they have and apply it in the larger context.

Douglass did manage. One could do worse that simply reading everything he wrote.