I am not a native English speaker and I have sometimes referred to people as male and female (as that is what I have been taught) but I have received some backlash in some cases, especially for the word “female”, is there some negative thought in the word which I am unaware of?
I don’t know if this is the best place to ask, if it’s not appropriate I have no problem to delete it ^^
I think you got this mostly dead on but I don’t know about it being because anyone thinks women are animals. I do believe the part you wrote about it being about difference/distance is correct though. In fact I think cops refer to suspects as male or female for the same reason. Man and woman sound nothing alike and are easier to say, so there must be some reason not to use those words. I think they say male or female to create distance between them, and not a person, but a gendered wrongdoer. That way they can apply any and all force without feeling as bad about it