When did "community organizing" become communism?

I agree with a lot of the commenters in the speech thread. I don't quite get this. It's something Obama did, like, fifteen years ago. Why is it considered this un-American abomination? Isn't electoral politics, essentially, just "community organizing?" Is the basic idea at work here whatever you opponent does is alien, and whatever you do is proper? What are we going to go after next? Is eating at McDonanald's five days a week "American?" Is having your kids play soccer, French? I'd love a list of practices that automatically make your American citizenship suspect. Or is it simply anything Democrats do? Where does this go? "Only merlot-sipping Democrats actually inhale oxygen. Real Americans hold their breath until they turn blue and pass out..."