Describing people as "non white" does make sense, but only in very specific contexts. If you're talking about white priviledge in contrast to several other groups, basically. If you had a society where everyone was either black or white (no other ethnic groups eg. Asian) then you'd use the word "black" instead of "non-white".
The "non-men" thing sounds ludicrous because "men" and "women" have until very recently been defined purely as sex catergories, which in the ordinary run of things is binary. So the word "women" was/should be perfectly adequate to describe the whole group who aren't men. If people want to start looking at the shades of grey involved in performing gender roles, then "non masculinity performing males" is a much more accurate description to single out the oppressors against the oppressed. But they don't, they want to trample over the fellow oppressed and ... oh... it's as if they view being oppressed as a privilege. Somehow.
Sorry, just thinking out loud there...
werks ... the notion that power now resides in less "privileged" identities.
That somehow women have all the power over men now, and the disaster of mens' lives is entirely due to the fact that women have all the power and are using it to destroy men through divorcing them or being a bitch boss and, somewhere along the line, this is all the fault of feminism.
I think this stems from the same internalised norms that means women speaking for 50% of the time is viewed as them speaking too much. So women gaining power is seen as them having more power than they should have. Not more than 50%, but more than what men deem is their "fair" share. There's also an side-order of blaming women for male problems stemming from patriarchy.
I was wondering about this recently in relation to single motherhood by choice. I was thinking that actually, this is a way that men may collectively be forced to step up and stop being manchildren, because women no longer have to "make do". I think a lot of feminism had made certain men very angry because the ony thing women actually need from men now is sperm, and they resent having to be decent people so a woman actually wants to be with them. I strongly suspect single mothers by choice will become folk devils, the Daily Heil with have a hate campaign and Flannel 4 will make them the subject of freak shows. When in reality the whole problem arises due to the dearth of respectful, responsible men.