The problem is that when you get more for less, it kills the incentive to do more. This is a really glaring problem, and people go to really great lengths to either sweep it under the rug or hand wave it away.
> it kills the incentive to do more
I'm an employee. I don't really benefit from doing more. When I do more, someone else makes money. In my experience that someone else is just as likely to lay me off for a cheaper worker as they are to give me a raise
The incentives our system produces are already really skewed, and it would be nice to see them skew the other way for once
Incentives don't disappear at some arbitrary level of taxation. I think you can have both sufficient incentives and more equitable distribution. The frankly obscene levels of wealth concentration we are witnessing suggest that there is a lot of room for refinement.
I do find it interesting that a lot of people (not trying to imply that you are one) bang on about incentives while also fighting tooth and nail in favour of weighting taxes toward earned income (derived from doing useful/productive things) instead of unearned income (derived from simply owning things).
I get that some people view all forms of tax as theft and while I appreciate their honesty, I simply can't take them seriously.