i found this article ("Is Feminism Men's Work Too?") to be a well-reasoned and effective call to action for male feminists.
i especially appreciate this quotation from Khary Lazarre-White, founder of Brotherhood/Sister Sol in NYC, and the overt connection he makes between feminism and morality.
“It is personally important for me to do this work because I try to live my life by a moral and ethical compass, and I know that fighting sexism is a daily lived responsibility—from structural organizational work decisions, to personal relationships, to how one lives one’s life.”
in other words, it is ethical to join the feminist movement; the unequal treatment of women is immoral.