Well, it's no secret that mothers are heavily favoured when it comes to custody battles and men are taken to the cleaners by the presiding judge. In the case of male prison rape, whenever it happens, no one really seems to care because the general attitude is, "they're prisoners, who cares?" Well, be that as it may, that does not justify the harm that comes to them and also, it's a toxic environment that results in the spread of STDs. It can also lead to these men, unfortunately, becoming actual rapists once they leave prison.
There's also the historical idea of male disposability. In wartime, men are expected to go fight and give up their lives for their country. The draft itself is a gross human's rights violation because it violates the right to life, liberty, and security of the person.