I'm very tired of Democrats pointing out that a majority of people want to raise taxes on high incomes. Is that really a surprise? Some of those people are likely dispassionate and believe it's good policy, but most of the people who support that do so for selfish reasons.
Read this article. Have you ever seen any proposal to reduce the deficit that was popular besides increasing taxes on high income? No one wants to cut Medicare, Medicaid, Social Security, raise any other group's taxes.
I really wish these polls would ask different questions that are more informative, such as "What percentage of the nation's revenues should come from each quintile?" or "Is there any tax rate that you believe is too high for anyone to pay, i.e., should the government tax anyone at a 95% rate? If so what is that number?"