I find this logic extremely flawed. If you save half, you save half. If someone saves a lot more than you as a result, it mains they paid a lot more before, and

I find this logic extremely flawed. If you save half, you save half. If someone saves a lot more than you as a result, it mains they paid a lot more before, and is still paying a lot more than you now. As fair as it gets. Those that complain are usually imagining a robin-hood esque system where the tax progresses towards 100% as income goes up. Trying to heavily tax billionaires is one thing, but the issue with them is tax avoidance by virtue of these complicated systems, and a lot of the incremental taxes land on people just plain working their ass off, getting no sleep, high stress and high blood pressure as a result. If someone has more because they worked more, they're entitled to exactly that. Incremental tax also means that if you have a good year and a bad year you pay way more tax than if you just had two average years. Not to mention that such complicated tax is what enables tax optimization whereby those higher up can end up paying less tax. It's stupid.