Men are to be self-sufficient. This means they do not need to be helped by others, if they are men.
Men are to be strong. This means they can not express physical and emotional pain, sadness or fear, if they are men.
Men are to be the protectors in society, especially of women and children. This means they should not need to be protected by others, if they are men.
To be a male victim of domestic violence means the man:

Has a need to be helped by others. This means he is not self-sufficient and is not a man.
Has a need to express his physical and emotional pain, sadness and fear. This means he is not strong and is not a man.
Has a need to be protected from an assaultive woman. This means he cannot protect himself or his children. He is a WIMP and is not a true man.