Make your own sign. Gather a group of friends, male AND female, to support your side.

Or, try to look at them with pity. How sad their lives must be. They probably need some good psych meds! You will never be able to reason with them. That's what makes them fanatics.

"Well behaved women seldom make history"

And really, they are not worth your expending you energy on. Save your energy for cause that matter to you. Allowing them to make you angry gives them the power. If you can, LAUGH every time you walk by. point and laugh!