And you know what - on an aggregate, societal level - it might actually be: men and women are not the same, and that's OK. But this is a statistical observation that only applies to the population as a whole and is completely invalid at the individual level. If you feel yourself reaching for this knowledge at that level then evidently you don't have enough good information about the individual in front of you - that is the problem you need to fix.
If we took away all the contextual stuff we know about our founding mothers and fathers and referred to them only with asexual codenames like 'Person X', absolutely nothing would change. If one's aim is achieving equality, the only way to truly do that is to strip away all the bullshit: gender - just like hair colour, accent, and anything else you care to name - shouldn't even register. It's a non-thought.
If that's what feminism is about then I'm a feminist; but I'd never actually call myself that because 90% of the feminism I see today is most definitely not like this, it seems instead to be about making gender register in a very big way - and that's just as misguided and self-destructive as misogyny.