This is nothing more than a consumption tax, based only on air.
It is a horrible idea. It is designed to tax the poor far more than the wealthy.
It is NOT fair in any way shape or way. It simply refuses to admit the many many benefits that the wealthy get from the government, that the poor don't.
The poor don't care if the government is overthrown and someone confiscates half the wealth. The wealthy do.
The poor don't care if their house burns down (and no one dies), the wealthy do. (at least not to the same extent - they are left as poor as they started).
The poor don't benefit from police as much as the wealthy do. (Think about what happens when they are both arrested for a similar crime, or how much you lose if someone steals from you.)
The poor don't benefit from transportation infrastructure, the wealthy do, they don't travel or ship as much.
The wealthy can call up government officials and get stuff done, the poor can't.
Your idea is ultimate regressive, and you fail to see the problem with it. Worse, arguing with someone like you is irrelevant because you don't care about right and wrong, and your sense of fairness is so radically warped that you have no idea that the far majority of people in the world disagree with it. It's like you said you don't see anything wrong with slavery.
The basic problem is you do NOT understand the very concept of 'fair'. Fair means an equal chance. That means when you get more, you pay more, and the wealthy get SO much more, they have to PAY so much more. It means that children are not penalized for mistakes or stupidity of their parents. No that child gets nothing because his parents had a big family, or just couldn't afford college.
Until you learn the real meaning behind the world 'fair', the rest of the world will laugh at what you think is fair.