Income inequality is only part of the picture. Household expenses and net wealth must also be taken into account. It is wrong that people with moderate incomes but no net wealth are having part of their income transferred to people with lower gross incomes but vast net wealth.Ok, maybe I should've quoted from the report's abstract for those who haven't read it.
I think a progressive system is fair, to a point. If, for example, people ended up only marginally better off working than they would be on welfare then it's not fair. If people who didn't work starved and those in high incomes only paid a very small more then it wouldn't be fair either.Why would a progressive tax system not be fair? Surely those who earn more should pay more?
So the answer to your question is "probably but it depends".