This is just me rambling. I have not studied the issue academically. I am commenting based on reason and life experience. I could be wrong in certain areas and I am willing to be open-minded to learn new things about white privilege...
I am not sure I agree with how white privilege is ordinarily explained in memes and social media....that it's some aggregate feature, like average income, and then the person posting it is like..."see?" I mean, personally, I grew up very poor in my early youth, was middle class later on, but because my father was a convict and I was a ward of the state, I always had a lot of differences from the aggregate. I really don't appreciate people discounting my real experiences.
However, the way I see white privilege is actually the interaction of the aggregate of everyone else and the person in question. For example, as a white person I am privileged with the positive perceptions of almost everyone in the country. Even when I was a poor youth, the average perceptions of people were that I was "cute" when I was a baby, that I had potential even as a poor adolescent, that I was accepted into an elite school because of ability, that I could easily fit in as I interviewed at jobs, that I was very professional at my jobs, that I am one of the people who deserves my residence and property in my neighborhood and won't cause problems or bring in the riffraff, and frankly I don't know what else offhand. So that's the first part of how I view white privilege. There is a constant perception by aggregate society at large that puts an individual white person in a different place and judged differently than the same person if they were of a different race in the same position. It's a relative, aggregate difference, but some part of it is extrinsic to the person in question. Let me coin this social white privilege.
The second type (IMO) of white privilege are the various racist and historically racist features of society that afford white people some advantage over others. These things may be very concrete, perhaps outdated laws, or seemingly neutral things that create greater probabilities for white people to take advantage of or utilize because they are dependent upon vestigial effects or inertia of past racism. I think it is proper to call such things white privilege. Let's call this type structural white privilege.
Now, I reckon, there is a third type of white privilege which is empirical but like someone else wrote, you can't sit down and prove it for every particular instance. (a) There were literally billions of interactions I had in my life with other people. (b) There were also many instances in which I was conferred benefits through structural white privilege, many of which I didn't even know about until recently. (c) Therefore, it is a statistical reality that perceptions and structure, i.e. social and structural white privilege played a role in positive treatment or skewed difference in my lifetime as compared to a theoretical person of a different race in the same position. I don't think it is proper to compare two aggregates and say, "see?" It's more like a paired t-test than an unpaired t-test, if you know what I mean? Let's call this broad privilege which is a synergistic combination of many instances of structures and individuals' perceptions institutional white privilege but keep in mind I am not sure if I believe that 100.0000000000% of white people concretely benefit from this statistically as opposed to say 99.999999999% due to chance.
Now, like I wrote I haven't studied this academically at all and really I am borrowing adjectives from descriptions of racism and could be using the words completely wrongly....but hopefully at least these are things that can be discussed and evaluated. I believe they are also true.