"white culture" is oppression
I wrote recently about there being in-groups for queer folk, black folks, women, and other groups, but how "white people" don't have something unifying like this.
As far as the white-culture of it goes, I don't really have a solution in mind. The main point of this post is to identify that straight whites don't necessarily have the same kind of cultural hotspots that queer folk or black folk do, and that some people might want that, and it might not be a white-supremacy/nazi thing.
It has since occurred to me that "white people" come from many different backgrounds, and those backgrounds provide in-groups. Greek culture, Italian culture, German culture, etc.
It's not weird to have an "Italian" community, such as exists in St. Louis, Missouri. It's not weird to have "Greek" restaurants. But it would be odd to have a "White" restaurant or a "White History" group or something. The only manifestations of white-centric groups I've seen are things like the KKK, Nazis, etc.
More broadly, if you consider "white" to be a "race", the only real unifying feature we have is our historical dominance over land and resources and non-white people. I could even say that oppressing women (including white women) is a feature of "white culture" historically. Perhaps that blurs lines between patriarchy and whiteness, I don't know.
But I also recognize that we have a lot of "white people" stereotypes when it comes to cooking, how white folks dress, how white folks speak, etc. And among whites there are certainly subcultures like redneck or biker, which are not unified around skin-color. I'd also say that these subcultures aren't necessarily white-only either.
The point of this post is to say that ... straight white people do indeed have in-groups, just not centered around being straight or being white. Or at least not in the same way queer folks do.
(Yes, much of dominant western culture is straight and white. There's a distinction here that I haven't communicated well, but I'm done yapping anyway.)