Here's the way I think about:

The real objective is, or should be, equality in all things that are not explicitly biological in nature and equitable treatment even in those. Thus, none of us should be excluded from the halls of power or anywhere else based on our biology even as things like health care are tailored to our biology.

That would seem to argue against a place called "men's liberation." The reality, however, is that we have only nicely begun the journey. Both men and women have much baggage to discard by virtue of both historical and current cultural and legal norms.

Those cultural and legal norms have imposed different behaviours, thought patterns, and roles. Men and women have different sets of baggage to deal with, so it only makes sense to find our allies in our journeys among those who share a common burden.

I am a male. I have rarely been excluded from women's liberation groups when I try to learn and have occasionally found that my perspective was appreciated. I would hope that the same thing is happening here.

I hope that we are all working toward a more equitable and more egalitarian society, but we won't get there by ignoring the real differences between men and women that have been imposed by culture and law. We cannot fix what we do not acknowledge.