I agree with the notion that breasts are not sexual organs. Do I think women should be able to flail them around infront of children? No. Do I think men should flail their pecs around infront of children? No, I don't think so either, at least not down at the shops.
However, what really grinds my gears regarding this is that they were annoyed at men taking photographs. Get the fuck over yourself; it's obvious you have chosen to protest in such a way to get attention.
"HEY LOOK AT ME I'M COMMITING SOCIAL FAUX PAS!"
*man takes photos*
"FUCKING SEXIST PIG"
What a joke
Nudity is not bad to show in public, necessarily. Take the nude beaches in Italy.
After all what you see is in your eye only and if you think that it's wrong just don't look.