To get a sense of the priorities of the two major parties in American politics, I took a look at their platforms from the 2008 election. I searched each document for two words: "taxpayer" and "citizen". Here are the results:
"taxpayer" = 12 mentions; "citizen" = 17 mentions
"taxpayer" = 3 mentions; "citizen" = 29 mentions
Just for reference, "taxpayer" is not mentioned at all in the U.S. Constitution, while "citizen" appears 22 times.
It is pretty clear that the Republican Party is more concerned about the size of your wallet than anything else when they consider your status as a taxpayer of equal or more importance than whether or not you are a citizen.
Wal*Mart pays taxes; Wal*Mart doesn't get to vote.
Taxpayers don't have rights; citizens have rights.