There are a lot of problems, they have varying magnitudes, and some people choose to focus on a particular problem. That's okay. It's frustrating how often it seems like feminists are expected to solve every problem in the world simultaneously to legitimize their attempts to solve one problem.
If we came together as people, regardless of gender, and demanded more rights in the work place (family leave instead of just focusing on maternity leave for example), we would have a LOT more standing to accomplish our goals.
By fragmenting the population, telling the middle class white guy it's his fault the middle class white woman doesn't have maternity leave because the boss happens to be a white male (though upperclass), you are only hurting your cause.