It's funny how males will bear any burden, pay any price, fill in your cliche, in order to see a breast ... and women will spend a fortune on clothes that show every allowable square centimeter, and then a fraction more ... but if there's a baby eating, it's suddenly a moral outrage, an aesthetic crisis, and a public sanitation disaster.
True. I would venture to guess, however, that those men you described are more calloused when it comes to getting flashed my nursing moms. It's the ones who aren't like this that are more likely to get offended/annoyed/grossed out. As I have said, I personally don't give a hoot, so long as you take precautions, it's none of my buisness. As for laws, that's rediculous. People don't have any buisness making laws about nursing.
Men, as you described them, being outraged at women breast-feeding is the equivilent of someone sleeping around in college being horrified when the find out their friends is having an affair
...does that make sense?