the richer should pay a higher percentage of their income than the poorer because they can afford it.I would offer a meaningful response concerning the characteristics of a free society, but I think I'd rather just call you names. Unfortunately, even egg-sucking-dog-marxists are protectd by the rules of this site, so I will refrain from personal attack.
"Free society" is a completely meaningless expression to them. They're much more fond of expressions like "the end justifies the means," and "workers of the world unite."