Just a reality check: Sexism is not a preference for particular gender roles, its the belief that one gender is inherently superior to the other. When you hear feminists calling men pigs and going on about men causing wars and injustice or whatever, thereby condemning the entire gender...that is sexism. When a man goes on about how women are not capable of being successful in business or being the POTUS because of their delicate sensibilities or lack of intellectual fortitude, that is sexism.
If a man seeking a woman who wants to be domestically oriented is sexism, then a woman seeking out a man who is traditionally "marriageable" is also sexism, and to exactly the same degree.
There is an extremely large difference between preferring a woman that wants to be a homemaker, and actually believing or demanding that a woman by default should be a homemaker, especially on the grounds that that is what she is best suited to.
Is a woman seeking a mate sexist because she chooses the guy with a stable job and a stable personality, as opposed to the guy who lives in a van and is pursuing his "art" or whatever, and is prone to landing in a different woman's bed 3 times a week? Is the man sexist because he seeks a mate that has aspirations towards family, as opposed to 80 hour workweeks? Or if he suspects she'll just divorce and leave him in an financial shambles for a couple of decades?