What's changed is that while there are groups advocating for pretty much every group, poor white men are lumped into the same category as rich white men, and ar

What's changed is that while there are groups advocating for pretty much every group, poor white men are lumped into the same category as rich white men, and are seen as "not needing help" or being a part of the "ruling hierarchy" even though they are poor. I think that is what OP was getting at, that is, by looking first at race/gender, before class, you're alienating a whole group of poor white males that don't see themselves as part of the dominant "white male" narrative. They're struggling just like all the other poor people, but told they "have it good" because they're white, and this is contrary to what they experience day-in and day-out.