According to the film, 250k men who are circumcised are trying to restore it. Quite a large number considering how obscure or non-advertised the treatment is. They explain in the film why there are so few lawsuits - parents sign the consent form and decades later the infant who is now a man has no legal recourse (e.g. there are cases where the surgery is botched and the entire penis is completely cut off and doctors can simply throw up there arms and say, "that was the risk, sorry"). They interview one man who was cut but his mom was under sedation when she signed so he was able to win a $4.6 million suit. If lawsuits like this were practical and enforceable for most cut guys, I think that widespread circumcision would come to an abrupt end.
It's not something that is talked about often and when it is, it can be uncomfortable or embarrassing. It's a very private and personal matter that impacts only the individual (compared to something like abortion which involves man, woman, child). It is also wrapped up in tradition, religion, and cultural norms, and for all these reason you don't get mass protests. But its days are certainly numbered among non-religious people.
On another note, unless you're lactose intolerant, who doesn't like cheese?
