Wow, rustle, talk about rampant (and erroneous) generalizations!

Re: the marketing firms "who have 90%+ female staff" and it matters not, "because their lack of gender diversity harms no one."  Really?? Try being a male job applicant for a job in that firm!!  Unbelievably naive.  

But there is a different "harm" these firms perpetuate.  I would steer clear of these companies if my firm was a potential client, and my target market was male--of ANY age range, and these firms didn't offer to call in a couple of great male free-lancers to guide them.  Why would I entrust any marketing concepts, ideas for my male market from WOMEN?  Not a chance.  Yeah, I know, I'm biased, too...