[Houshalter]

You are right that other people have it worse often through no fault of their own, but this doesn't mean "privilege" is a useful concept. You are also privileged by being born into the late 20th century instead of a medieval village. You are privileged by not having any disabilities. You are privileged if you are attractive (which correlates with a lot of good things.) You are privileged by hereditary IQ (correlates with income.) Especially what country you are born into.

By comparison race and sexuality are only tiny factors. On top of this, even if you are white, straight, etc, you can still have a shitty life through random chance. What use is it to divide people into these specific categories when there are millions of other factors as well?