There are exceptions to this.
Cosmetology is a field where girls do the kinds of things that girls love to be doing. Fashion is another such industry.
When girls are doing things that involves more traditionally feminine work rather than traditionally masculine things (particularly office jobs), they tend to get along pretty damn well.
When girls are placed in environments where cooperation flourishes over competition, some amazing work gets done.
I'm not talking about Great Cuts here. I'm talking about Estée Lauder. I'm not talking about The Gap. I'm talking about Ralph Lauren. Have a good, hard look at the beauty industry and tell me that these female-dominated companies aren't doing something right.
One of my bitches works for a high-end cosmetics company doing hair and makeup. She absolutely loves her job, and all the girls that work with her do too. I have read post after post after post raving about how great it is once you get your foot in the door. Very few complaints, which usually revolve around how hard it is to get in.
I know, I know, don't listen to what they say, watch what they do. Fine. Girls dream about working for one of these companies.
Three things seem to heighten workplace craziness among girls:
It doesn't matter how many men (or girls) help her, if the work she is doing involves a lot of risk, she cracks. It doesn't matter how much her coworkers fill her with motivational speeches, if she isn't doing something that doesn't connect with her inner femininity in some way, she cracks.
Girls are meant to be crafty little homemakers.