To whatever extent you are deprived of the fruits of your own labor, to just that extent, you are a slave.
That's just it. The statement does not say whether they are paying a greater percentage of their income or not because it says nothing as to what the total income is. You aren't paying a greater percentage in tax if your income is also greater by at least the same amount. To say, in this case, that the top 2 percent is paying 45 percent of the taxes does not say anything as to whether they are paying the same percentage of their income or not. It's a meaningless and deceptive argument as it stands.