Wow.
Just wow.
OK, first of all, I don't think Zimmerman and Martian were just having some hearty male fistcuffs in a back ally.
I think Martian was beating Zimmerman. It may have started out due to some masculine bravdo of the stupid tyoe, but based on the photo's of Zimmerman I've seen it escalated to the point of one human being giving another human being a beating that would result in serious injury, if not death, if it didn't get stopped.
My concern with an all female jury is simply that the jururs are not the broad example of Zimmermans American peers that it should be. If bias was something to be concerned with, it would be the continued representation of Martian as the innocent little schoolboy, which would possibly affect the female jury in there capacity as mothers or future mothers.
To be honest, the concept that getting overpowered and beaten (which is what happened, not this hearty masculine barfight of which you speak) is likely to be more effective among a female jury to get them to take Zimmermans side.