For me, this kind of joke does nothing other than further the cruelty of an already too willing audience. Jokes riddled with oppression produce nothing more than nervous laughter. No wonder there's little funding for humor research.
Many of the comedians today are clueless Pavlovian-type proponents of an outdated sense of humor (see above comic). They observe differences and are too eager to laugh about them, never questioning whether or not being the butt of a joke is funny. Admittedly, these comedians question whether or not something "is funny" but only by asking people who demographically or culturally share their preconceived biases, therefore failing "to get" that the joke is on them.
It is this type of humor that has the broadest appeal. In my mind, Carell hit the nail on the head when he said: "Look at Peter Sellers - he played characters who were heightened and silly, but at the same time, you were watching a human being trying to hold on to a semblance of dignity."
If I were alone in my belief that "dreams" represented nothing more than a Freudian repressed sexual desire, the words of Martin Luther King, Jr. would have never inspired a nation to work toward solidarity.
I think humor can be used to find solidarity in a time when more and more people on the planet are connecting with people who have different viewpoints, religious beliefs, and even, different values. Every day, people "befriend" people they don't know in an attempt to learn and grow.
The path lay in the expressive potential of our intellect and sense of humor. The impulse toward negativity seems to lull people toward it, but they do so laughing out of nervousness and recognition of the incongruities, superiorities or inferiorities, rather than from the goodness of their own hearts. When people can look to humor and feel uplifted rather than apprehensive, that will be the day when the true meaning of humor is understood.
From my viewpoint, it's time to confront the work, not the comedians. In doing so, we raise the expectations of humor and illuminate in our audiences a quasi-religious experience, even eliciting tears of laughter. It's the height of the humor scale we strive for that contributes to the meaning of funny.
Bathroom humor is widely recognized as a funny human expression. It is not usually oppressive, which is probably why it appeals so much to the innocence of youth. It may be socially unacceptable, but it is still very human. It takes years to develop biases about socially acceptable behavior. In this respect, children haven't yet had the time to judge it. For them, it's a funny part of life. If it were oppressive, the book, Everybody Poops, would have never sold a million copies to parents of baby-to-prekindergarten and nine to twelve age ranges.