Bill Maher is an entertainer along with the likes of Rush Limbaugh, Glenn Beck, and Mike Malloy. He also happens to be good friends with the Wicked Witch of the Right, Ann Coulter. I'd bet a pretty penny that over half of these people's audiences absolutely despise them and scream at the TV or radio frothing at the mouth in fits of rage. Howard Stern himself has stated that half his listening audience hate his guts.....but they tune in anyways.
As for which political party can claim the title of being the more racist of the two, Democrats can lay claim to that title, both historically and in the present. Leftist loons thrive by keeping minorities in the dirt and in prisons so they can have solid voting bases. Dependency, promises of "social justice", protection from the ever-present racist white man, and other false promises are all nothing more than racism and supremacism at their very core. By keeping various minorities in the dirt, shakedown artists like Jesse Jackson, Reverand Al, the NAACP, and La Raza can stay in power, influence politics, and maintain constant presence in major media outlets. When equality is attained, these entities are no longer needed......as long as they can help it, it isn't happening.
I'd say many programs put forth by well-intentioned Liberals(and sometimes definately not) and other politicians such as affirmative action, race-based grants and scholarships, and other forms of social welfare programs have damaged in particular the black community moreso than Jim Crow ever did. While those days of overt and blatant racism were seen everywhere, black communities consisted primarily of nuclear and extended families living together and being an actual community. Today, blacks fill prisons, walk the streets at 3 in the morning, kill each other off in droves, have children out of wedlock, come primarily from broken families, and participate in slews of drug and violent crimes.