Let me take the second point first. I'll make the statement generic: "A way people in a dominant group reinforce the power of the dominant group is to try to prevent discussions where non-dominant groups explicitly discuss their experience as non-dominant groups and how they relate to the dominant group." That's pretty clearly not a racist statement.
Now let's take another statement: in America from the 1700s onward, white men are the dominant group. This is explicitly in the foundations of the country, and although it has become less true over time, looking at things like wealth distribution, positions of power, and access to power, it's still not an unfair statement. That statement describes a racist system, but I don't believe to be racist in itself.
What do we get when we combine the two statements, using the generic thought expressed in the first and the historical specificity of the second? "The way white men practice identity politics is to complain about identity politics."
So I believe that's not a racist statement either. I also think you over-apply it. As I already explained once, I am explicitly not saying all complaints about identity politics are illegitimate. I am saying that white men acting to maintain their societal dominance will complain about identity politics as a means.
Now to your first bit, I believe what you say is correct, but you miss my point. The reason I'm bringing it up is as part of pointing out edblarney's treating of men as the default. I agree with you it's wrong that white men are treated as the generic. But in pointing it out, I'm trying to undermine it. (In case you're curious, the technical names for the phenomena that I'm concerned about here are erasure [1] and the unmarked case [2], and I'm opposed to both.)
[1] http://www.nytimes.com/2016/02/07/magazine/the-painful-conse...
[2] http://www2.bakersfieldcollege.edu/driess/Readings_files/Mar...