Yes and no. Even grandmas and aunties can perpetuate sexist ideas. I believe the the power of words...and what we choose to think is funny shows where our heads are at...deep down. Is it funny if humor hurts someone? Most of those funny home videos of people getting hurt...leave me cold. So does humor that perpetuates sexist ideas.
I have a good sense of humor...but many times I don't laugh when others do. I remember that movie about the coke bottle...(can't remember the name of it) and when the outback tribesmen puzzled over the bottle and did strange things with it...I was silent while the whole theater roared. I thought their innocense was charming, not laughable. But when the movie showed the scenes of modern day life (in comparision) I roared at the frantic absurdity of it while the whole theatre was silent.