It's not about whether it's in your control or not. It's a matter of hurt. It HURTS to lose someone. It's painful when you're under a lot of stress. When someone breaks their leg, are they not supposed to cry, even though it hurts? Or what about third degree burns? If someone gets one of those, are they not supposed to cry over that?
Though they might be feeling physical pain, emotional pain is just as relevant and you feel it just as much. So don't go saying to someone because they can't control it don't cry about it. I don't have a clue as to why you're so cynical but I suggest that you take it elsewhere, because making someone, male or female, feel guilty because they cried is extremely rude.