Is white privilege real? To what extent?

[Thumpalumpacus]

Your gripe appears to be with the english language and it's use in describing a demonstrable phenomenon.....rather than the phenomenon itself.  

If I called white privilege "fixat", would you still have objections to the existence and extent of fixat?

I have a gripe with the English language because I use words the way they are defined in the dictionary?

Dictionaries document usage, and almost always lag behind the current usage.

Language evolves. Dictionaries track linguistic evolution. They do not freeze it.

Furthermore, simply because two groups enjoy privilege doesn't mean you cannot examine one group's privileges in detail. And it certainly doesn't mean that there can be no overlap in privileges.

Both my sis and I, as kids, had the privilege of staying out late so long as we behaved. That doesn't mean we were treated equally.