You seem to really have a problem with Tea Party groups in this situation but how do you feel about liberal groups getting tax exempt status with no problems? Media Matters is clearly a liberal group and work on political matters, they even stated their goal was to get Fox News off the air. Where is their social welfare unless you consider getting rid of Fox as social welfare? What about the Tides Foundation?
http://www.groupsnoop.org/Tides+Foundation
Do I need to add more or do you not see that political groups have already been given tax exemption? The problem here is these Tea Party groups were delayed until after the election. Without tax exempt status they couldn't raise money as they should have.
Do you really want this country to be "fair" or do you want one side to have all advantages?