There seems to be the usual disconnect here between the meaning of sexism and sexual.
Sexual references and images can make people uncomfortable and may be inappropriate, but they are not sexist. It's not surprising that in a male dominated field, sexual references are primarily female - this also doesn't make them sexist.
Sexist: "Prejudice, stereotyping, or discrimination, typically against women, on the basis of sex."
Again, these images may be inappropriate in a professional context, but they are not sexist. In my personal opinion, sexuality is a part of life and sexual references don't bother me. They should be used judiciously and not to the point of distraction, but they are not inherently inappropriate. Others may disagree.
Calling sexuality sexist is sexist itself. It implies that sexuality is the domain of one gender, when in fact it is universal.
Sexual references and images can make people uncomfortable and may be inappropriate, but they are not sexist. It's not surprising that in a male dominated field, sexual references are primarily female - this also doesn't make them sexist.
Sexist: "Prejudice, stereotyping, or discrimination, typically against women, on the basis of sex."
Again, these images may be inappropriate in a professional context, but they are not sexist. In my personal opinion, sexuality is a part of life and sexual references don't bother me. They should be used judiciously and not to the point of distraction, but they are not inherently inappropriate. Others may disagree.
Calling sexuality sexist is sexist itself. It implies that sexuality is the domain of one gender, when in fact it is universal.