However, it does seem to me that that you still haven't addressed one of the main points you're responding to, that we can have perfect equality where everyone lives as the average person below poverty line today. Would that be a better society considering your arguments?
Well, no, we probably can't. Inequality can be mitigated, but it can’t be eliminated, especially durably.
> Would that be a better society considering your arguments?
That's really an objectively unanswerable question for many reasons. You can't really measure, on more than an ordinal scale, individual utility, or aggregate it, except by interposing non-objective judgements. Would it be better for lots of people currently above the poverty line? Maybe, depends how far below the poverty line the equal society was.