Privilege or Not? Why does it matter?

So, what we have learned so far:

[ul][]Some people find the term privilege useful, some people find it grating.
[
]Some people find diversity (for lack of a better word) workshops/exercises worthwhile, some people don’t.
[]Some people feel that it’s sensible to simplify discussions by grouping together individuals into various identity groups, some people don’t.
[
]Some people feel that current discussions of [insert pretty much any identity label here] in the United States are more fraught and loaded than they should be, some people don’t.[/ul]
Huh. There’s a diversity of opinions. Who’da thunk it?

But I hope that’s a good summary to this point, since I present it in the hope that we’ll stop getting bogged down in a simple repeated restatement of positions, and maybe get to debating issues of real substance (which I feel like we had going pretty well for a while upthread).