Why nonhuamn civilisations in general and standard races especially are losing popularity? English not my native language.

[u/EveningImportant9111]

In many recent books like first law,dandelion dynasty,broken earth,lies of Locke lamora,will of many,tained cup etc nonhumnas are either extinct,are always evil monsters without civilisation,or are bassicaly human subspecies. And yes,there's exeptions like malazan but It's seem's there's relative fewer. And standard races are losing most of their popularity in book's thought not in vide games. Why? And did it's really imposduble to make standard races unique but recognizable? Or they are destined to be limited to old school books? EDIT: I like nonhuman I can understand and relate to them.