You are trying to simplify something that isn't simple at all, all because the amount of women murdered in comparison to the amount of human males actually on the planet doesn't seem big to you.
You are ignoring that even what you consider a small ratio, is still a much, much bigger ratio than female to male violence.
The bigger picture."
See, this is what I'm talking about.
Your 'bigger picture' seems primarily concerned with the fact that more women are killed than men, rather than the fact that women have been killed.
To me, something that kills 1000 women and 1000 men is worse than something which kills 100 women and 20 men. However, a lot of feminists would consider the latter worse just because less men have died, despite the net result being worse for women.
I guess this is where 'equality of the sexes' comes in, in its literal sense. However, for me, actually improving things for women is more important than trying to equalise statistics.
I feel that the stats wouldn't be a problem for a lot of feminists if an equal number of men died, which is absurd logic IMO as it still doesn't help women.