raise their own individual taxes, but no one else's, and then pay at the lower rate.

The people you are referring to believe that taxes should be higher across the board (or at least as to certain large groups of people, which groups those people may or may not fall in). If the individual personally does not fall into the group that they think should pay higher taxes then they are obviously not hypocritical because they never advocated that they should pay a higher tax (they may be selfish, but that's a different story). If they fall into a group that they feel should pay higher taxes then they are not hypocritical because their position is that it would be good policy for that group, as a whole, to pay more taxes and that they are willing to individually sacrifice AS A MEMBER OF THAT LARGER GROUP because they believe that the entire group doing so will result in benefits that make sense from a policy standpoint. There's a huge difference there.

And by the way, I am generally opposed to high taxes and government spending, but your argument is just wrong.