No one is on "one or none" "axis of disadvantage". Everyone is born with many advantages and many disadvantages. Intersectionality is concerned exclusively with the the advantages held by white men in Western democracies. Women have many advantages that men don't have, but intersectionalists don't care about those.

Western society has a long history of producing ideologies centered on guilt and sexual propriety, and intersectionality is just the latest iteration. It's a descendant of puritanism.