Not really, no. The "We're called racists if we say anything against Obama"/"Obama's a Kenyan Muslin usurper!" nonsense has been going on now for a long time. The AC's criticism is absolutely on the money. And ironically, you're attacking the AC for bringing up what you consider to be a strawman when you the "We're called racists just because we disagree with Obama" thing is a ridiculous characterization of what Democrats and liberals have actually criticized.
If you really want to do something about it, you need to counter-attack your allies when they try to pull either BS. Tell those who insist that Democrats are not highlighting actual racism when they complain about it to knock it off. And tell those who continue to push the Kenyan Muslim Usurper bullshit to leave, and stop self-identifying with Republicans. If you continue to call yourself a Republican, but also continue to allow such views to be associated with Republicans, you don't have a leg to stand on when you claim it's a "fringe".