That's conflating actions with motivations, and sexism is a set of discriminatory beliefs and not simply any action that separates based on sex. It is for exam

That's conflating actions with motivations, and sexism is a set of discriminatory beliefs and not simply any action that separates based on sex. It is for example not sexism to say "only women get tax-free tampons" because that (could be) a rule based on concrete difference in irreducible need. The reason action get called "sexist" is a combination of carelessness in terminology when being upset about suffering things like sexual assault, and the fact that actions are the only availble proxies we have for the private beliefs of people. (As defined by their genitalia)