Orwell, if we must observe and believe that the Tea Party is racist, then let us go on.
Woodrow Wilson, Democrat-NJ president 1913-1921. Openly racist against blacks and Asians. Fought against any civil rights for blacks. Supported, lobbied for, and signed Asian Exclusion Acts, which limited Asians immigration, limited their civil rights even when legally in the US, and expelled Asians from the US, even some that were born here. Supported and signed Espionage Act 1917, an early Patriot Act but worse. Limited right of free political association. Wilson set up concentration camps for Germans, even US citizens. FDR set up camps for Japanese, Italans, Germans. Southern Democrats opposed black civil rights. Democrats like "Bull" Conner assaulted black demonstrators.
Why don't we assume all Democrats are racist.
Democrats are racist. Now, maybe Obama isn't racist against blacks, but he must be racist against Asians. Since Wilson hated Asians, then Obama must. Of course, Obama probably isn't racist, but we must observe the rule that all Democrats are racist.