PSA:
#Chauvinism (/ˈʃoʊvɪnɪzəm/ SHOH-vih-nih-zəm) is the [.] belief in the superiority or dominance of one's own group or people, who are seen as strong and virtuous, while others are considered weak, unworthy, or inferior. - Wikipedia
This is essentially #intersectionality on steroids, which fails to resolve the issue of racist feminists and negation of oppression in "non marginalized groups".
Anti-Chauvinism is core to #communist ideology as it attacks any othering and dividing efforts.