While in Germany, doing my best to drink every last drop of German beer, this sort of thing was never an issue. Countless times, the women's restroom had a long line waiting to get in. There were always one or two ladies standing there doing the wee-wee dance. Eventually, they realized it was approaching emergency proportions, and they just went into the men's room, did their thing, and left.
No confrontations. No protests. No lawsuits.
Everyone understood that they just wanted to wee. They weren't ogling the guys at the urinals. They went in, used a stall, washed their hands, and got back to drinking with the rest of us.
Someday, I hope the prudes in America will wake up and realize that their sexual hangups are not shared with the rest of the world.