The sex, gender, ethnicity etc of the victim, and the perpetrator, can give very important context that can point to very important issues that needs to be dealt with. If you’re alluding to the actual deaths of the victims being equally bad no matter their gender because they are all humans, then congratulations for passing the lowest threshold for human decency.
Wanting to end femicide doesn’t mean you value women more than men, it’s pointing to a specific issue. It also doesn’t mean that other issues doesn’t matter.
Everything has context, and context matters. Your can look at any issue from different perspectives and through different lenses. From different perspectives, different aspects of the context might be of different significance, etc. As such, there could very well be a perfectly fine reason to say “stop targeting women journalists”. But that doesn’t, at all, mean other perspectives are invalid.