Sure. Likewise the Pakistani flags burnt during PTM gatherings were raised by patriot pushtoons.
However the core problem in this type of mentality is
The keyword here is "Dehumanising".
The legends of goblins, giants a d such mythical creatures was created to dehumanise certain groups of human beings and to portray them an non human despicable creatures, so that when attacked and killed, the killers don't feel any emotional attachment or sentiments towards them.
Likewise, this seemingly harmless"funny poetry" has dark motives . Of dehumanising 55% of Pakistani population, which happens to be Punjabi.
I kid you not, calling Muslim Punjabis of Pakistan, children of Ranjit Singh, Heera Mandi ki paidawaar or rape children, Daal khor , Lung maar is common in Pushtoon culture of Pakistan and not limited to PTM and not limited to illiterates.