Stereotypes are everywhere..No need to feel pity or defend anyone from North or South.. Even for an educated folks in South, everyone above Andhra is North India and everyone speaks Hindi/Punjabi even though that poor soul may be from Manipur or Sikkim..!!
A North Indian cracking a joke is like a mental fart. If you take all idiots of the world together, you still don't reach the level of North Indian=Pakistani peanut brains. A street monkey from Delhi is far superior to his surrounding human fellows. And the monkey is more funny as well.
by the northies making fun of southern accents. I just enjoy it to the core. What else do you do when you see a monkey trying its best to mock at what ever you do in its own way? The monkey thinks it is perfect and as a human watching, we laugh at its act for a reason. The people who raise voice 'cos it is offensive are just morons who just do the same when it is their turn.
Like you said, when the Americans steroetype (actually that is very true, monkeykhan should be ashamed of his community and what they do around the world) it is not acceptable when when they do the same to their own country men, it is all okay. After all, here is where they make the money rite?