It seems you, yourself, have formed your own stereotypes. Not all the people in the South (of US) are bad. I can't speak for Levi, but the way I read his comment is that Poles tend to be straightforward and upfront -- maybe a little bit of "salt of the earth." Then again, obviously this doesn't apply to everybody.
One thing I noticed many Poles sure like to complain a lot -- not sure if this is good or bad.
"Not all the people in the South (of US) are bad."
Exactly. Actually, from my own experience, Alabama, Texas and Oklahoma have great people that didn't bend to the political correctness dictatorship.
Just like the Poles.
"it is obvious that he was refering to rednecks ...."
It is really funny that you call people from Alabama racist and then you use a depreciative expression to talk about them.