There is very little debate that you should be taxed proportionally to your total wealth; I.e. that the rich should pay more than the poor. In fact the only people trying to debate this are the rich who want to avoid paying back towards the society that enabled their success.
> I.e. that the rich should pay more than the poor
How else could it work? The poor don't have enough money to tax them. That's why they're poor. Schemes where the rich don't get taxed are systems that tend towards the 0% tax for everyone end of the spectrum.