its not
Yes, sexism against men does exist. It's called misandry, which is the male counterpart of misogyny.
Sexism.
sexism
Sexism is bad because it discriminates against other people just because of their gender.
Traditional sexism is the belief that women's roles should be confined to the family and that women are not as fit as men for certain tasks or for leadership positions. Ex. Men work, and women stay home to cook and clean.Modern sexism has replaced traditional sexism. It takes the form of agreement with statements like "discrimination in the labor force is no longer a problem", and "in order not to appear sexist, many men are inclined to overcompensate women".
Sexism?
discrimination against woman in the system
Institutional sexism is the discrimination against one gender (usually women) by means of actual rules, such as a rule stating that a particular job can only be filled by a man. This is distinct from individual sexism, in which people discriminate against women even though there is no actual rule that requires them to do so.
sexism
Having prejudice against someone based on their gender is called sexism. It involves believing that one gender is superior to another and discriminating against individuals based on their gender. This kind of bias can manifest in various forms, such as unequal treatment or limiting opportunities for individuals because of their gender.
Marilyn Frye defined sexism as a system of beliefs and practices that systematically privilege men and disadvantage women. She emphasized that sexism encompasses both individual attitudes and societal structures that perpetuate gender inequality.