You're crazy and its ilk are a tactic rather commonly used to silence and dismiss feminist speech by insisting or implying that the speaker has some form of mental illness, with the implication that their speech therefore is invalid. This tactic is heavily supported by deep-rooted ableism against people with mental health conditions, as well as institutionalized and systemic sexism. Racial minorities are also disproportionately affected. It is a direct descendant and not much more than a word-swapped version of the now obsolete The woman's hysterical!