Its as legitimate as anything else, also its more complex than just one side as well. There are 3 different positions in the US/UK as it pertains to gender issues.

One is traditionalism, which is a tit for tat, in that social obligation precedes rights.If you are socially obligated to participate in all violent wars, you then have rights to determine what wars are fought. How this proceeds with gender issues is that whatever side has a social obligation are also given a right to help further that social obligation.

Short Version: So it ends up being males get the benefit of A at the cost of B and females get the benefit of Y at the cost of Z.

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Third Wave Feminism on the other hand takes the traditionalist model, asks to match benefit A (effectively removing it from the equation) while advocating a sharing or removing of cost Z

Short Version: Male Cost B, Female Benefit Y

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The other Stance is a group called MGTOW, assuming I got that right. It stands for "men going their own way". They essentially want to break all bonds and remove all social obligations distancing itself away from the formula.

Those are the 3 stances that I've read at any rate.