I think you make a good point, though it seems to me that Congressional Democrats (and their voting base) are more enamored of handing the bill to the wealthy than the White House, which has a good few pragmatic people in it.
Sadly, factual statements on political matters often alienate both sides in the debate - without context, they may assume the worst about your motives.
They're voting you down, at least in part, because you're personalizing and over-simplifying the debate. Had you said:
"This is bad for the current health care proposals that are working their way though congress, because they tend to rely on taxes on upper-income citizens"
you would have communicated the same point, and sounded much less like a troll.
Edit: Downmods for a factually correct statement, without any comments? Wow, healthcare is a seriously political thing.
Edit2: And even more downmods. Here's a link showing what I wrote is correct: http://www.necn.com/Boston/Politics/2009/07/22/Obama-Middle-...