I did. I argued:
1) The goal of incentivizing/deincentivizing behavior comes into conflict with the goal of raising revenue for government services. For example, people have suggested high taxes on cigarettes and gasoline. But if you significantly reduce consumption of products, then you limit the ability of the government to raise revenue from sales of those products.
2) It's a free country, and thus the government has no business trying to do Skinnerean behavior modification on the populace. IMO that's a pretty disgusting idea and reeks of totalitarianism.
3) Income taxes do not actually stop people in any way from trying to better themselves financially. There is simply no empirical evidence of this.
> "fair" has a philosophical answer, not an objective one.
Yes, so?