I don't really know what you mean.
Do you find the puns offensive or are you disturbed by them because they are not politically correct?
I mean both. I'm disturbed by them and find them (and most of the content on page 1&2 as well) offensive because they rely on ignorance and a sense of unwillingness to learn about worlds beyond EU&US. That is, if it wasn't for this ignorance and closemindedness most of the puns wouldn't work. There's a fine line between rude and black humour and humour that lives off- and perpetuates prejudice.