Mary Frances Berry: "Tainting the tea party movement with the charge of racism is proving to be an effective strategy for Democrats. There is no evidence that tea party adherents are any more racist than other Republicans, and indeed many other Americans. But getting them to spend their time purging their ranks and having candidates distance themselves should help Democrats win in November. Having one’s opponent rebut charges of racism is far better than discussing joblessness."
I have experienced baseless accusations of homophobia (a redefinition of "marriage" that binds employers to an expansion of health care benefits amounts to a tax increase on shareholders, single employees, and the self-employed. Taxpayers carry too large a burden already) and racism (a moderator at the atheist/agnostic website Internet Infidels objected to "what do you mean 'we', paleface", and "Engrish, prease" in response to garbled text).
Until the campaign ends, this is my response to an accusation that I am a racist or a homophobe: "As I demonstrate on my website, The Harriet Tubman Agenda, the person making this accusation is a thief and a child molester." I can make this accusation with as much evidence as he has for his accusation (i.e., zero). I calculate that this citation will immunize me against legal liability. We shall see. At least, it does not leave the original accusation hanging in the air.
Updated with an expansion of the second paragraph.