No, because they are getting wealthier at a greater rate than either the middle class or poor. The U.S. didn't used to have this problem when the upper tax brac

No, because they are getting wealthier at a greater rate than either the middle class or poor. The U.S. didn't used to have this problem when the upper tax bracket rate was above 70%. It's plausible it doesn't need to be that high if deductions aren't as generous as they were when taxes were that high (for more than a generation by the way, so it's not like extremely high taxes at the top brackets has some civilization ending result - we already know it doesn't, in fact it acts as a strong incentive to avoid taxes by taking deductions in creative ways which ideally also have a social benefit).