What you’re calling “fair share” has no clear definition. It’s a goal post that keeps changing with the political winds, as some politicians/voters ask for more

What you’re calling “fair share” has no clear definition. It’s a goal post that keeps changing with the political winds, as some politicians/voters ask for more and more redistribution. Not to mention it is fundamentally meaningless when a high income person pays far more in taxes than the average person. That does not strike me as “fair” at all.