but it's understanding the term that counts. If someone has understood it, they can use characters from any time period, any book, people who understand the term can use analogies to explain the concept.

For example: if Kingsley and Harry or Ron and Parvati were going out and it was referred to by the author as miscenogation, that would be racist.

However, a Draco/Hermione in which Lucius refers to their coupling as miscenogation (the mixing of speicies) or a looking into Wizarding race wars (there are so many) or a look into and ACTUAL inter-species relationship and see how the characters feel, or talking about the muggle/wizard feud with different characters in different senses.

Heck, even in the House fandom it's possible to explore the concept, if in a very limited sense. And in every other fandom!

There are infinite possibilites to explore concepts like caste and miscenogation, not just confined to their historical abuse but using these new analogies to show the thinking behind such abuse of human beings.