From my experience politicians are much more uncomfortable being made fun of than they are being preached at and screeched at - you know and the soapbox routine. They're much more uneasy knowing they're a target of ridicule.
Everybody has a right to like or dislike anything or anyone. From a flower to a flavor to a book or a composition but it is very sad that in our country we actually fight over such things in an unseemly manner.