One cannot claim to be intersectional while at the same time being elitist and exclusionary. Everyone isn't hip to what heteronormativity, heterosexism, cisgendered, cissexism or many new-age terms mean. You can't write people off for not being where you are or prescribing to your beliefs. Being intersectional means to love and support people where they are and assist them in their efforts at gaining a better understanding of intersectional social justice. While the work ultimately lies on the individual to read/research further once you enlighten them, you can't do that if you brow beat them for being ignorant. If you're unwilling to meet people where they are, you're not being intersectional, you're being an asshole.