The concept of privilege and intersectionality is theoretically a useful concept. The problem is that the people who use the concept the most don't seem to have any interest in actually using them in a sensible, constructive way. They just keep on stacking intersectional identities like that somehow gets to the heart of the issue.

That's how someone can start the day as a straight white male (the most evil identity according to the intersectionalists) and go to bed as a trans lesbian (race tends to fall to the wayside for white trans activists). Nothing about them actually changed, but by saying, "I identify as a lesbian" they suddenly gained two intersectional identities. This entire concept is obviously ridiculous, but we've actually seen this in action with plenty of male feminists who have escaped the consequences of their predatory behavior (eg Charlesotte Clymer).

Another example is my sister acting like she'll be targeted by the cops for being a "fat, queer woman of color". Systemic racism is a problem that really becomes dangerous when it manifests in law enforcement, I'm not denying that. But I don't think that Asian women who exclusively date men are being victimized by police no matter how many intersectional identities they claim.