"each person has someone that THEIR really bad at"
Like.... spelling? ;-D
It must be nice to be so great at everything that you have to be bad at cooking in order to have other people think you're human! Personally, I think there's nothing better than knowing I can, any time I want to make the effort, have an absolutely delicious meal. I usually feed the leftovers to myself and my husband for lunch the next day so I make darn sure it's good!
In math, "equal" means "the same as". In relationships that's not true. Women aren't the same as men, and that doesn't make them better or worse. Just different. That is a good thing. Most women, when confronted with their own infant child, will feel nurturing and want to care for it. Obviously no blanket statement is true for everything.
I am sorry you think so little of men that you'd deny your hypothetical child a father. Before I met my husband, I sort of wanted kids. It was a "maybe that'd be nice one day" thing. Since i've met him I'm looking eagerly forward to our family. I can see all the traits and skills he has that will mix with what I have in our children. It's so much more exciting to think about 'our' children than 'my' children. I can't imagine having kids on my own or with anyone else.