This claim is dubious at best, nor does it prove anything.
Polling date on the Tea Party hasn't suggested much of anything, outside of showing that they don't have very many non-whites represented at their rallies, and that their movement is nearly 50% 55+. Racism can't be concluded from any such data. The KKK had many, many affluent and educated followers, despite the stereotype that they were all dumb rednecks. Again, this itself is not proof of racism, it's simply just not proof of anything.
However, studies done do show they believe many of the odd talking points such as birther claims and that Obama himself is racist (as high as 60%).
That proves buttkiss. Additionally, not to pick on you, but despising racism and being racist are again two different things. Not saying you are, but again, that proves very little.