What you are misunderstanding (possibly intentionally), is that each axis of power dynamics has more- and less-privileged positions: race, class, sex, gender, sexual orientation, physical dis/ability, mental dis/ability, etc. A fully able-bodied and mentally healthy rich, white, straight, cis man is obviously going to be more privileged than a paraplegic, poor, black, gay, trans woman with learning disabilities (but note that even this does not automatically translate into more happiness, better self-esteem, etc.). But if you try to compare the privilege of an upper-middle class, native-American, gay, cis woman born with only one hand vs. a poor, white, straight, cis, teenage boy with ADHD, it’s much thornier, and ultimately not an important comparison to make.

When people speak of white privilege, they are saying that a white person lives generally unencumbered by their race and how others perceive them because of it. They are, in aggregate, less likely to be pulled over or stopped by police. They are more likely to get job interviews, and to be seen as a good potential hire by those interviewing them.

For male privilege, it means being more likely to be seen as leadership material, less likelihood of being sexually assaulted, a probability of higher lifetime earnings, and less chance of having one’s ailments dismissed by doctors, or of being passed over for a promotion because you might someday get pregnant and need maternity leave.

Every axis of privilege is different, they are not particularly cross-comparable, and they are all just probabilities - none are deterministic. Some types of privilege are fairly inherent (class, health/ability), while others are based on how our society treats people differently based on group affiliation (race, sex, gender, sexuality). The point of identifying these is not to shame those who have privilege, but rather to recognize the various difficulties faced by those who are less privileged, so that we might mitigate those challenges. In a just world, everyone would be treated as though they were a member of the privileged group(s) along every axis, and judged only by their own actions.