your retarted. its can be properly critiqued because it pulls from real life. It would be crazy if people just started making fantasy novels showing koreans as slaves and not even handling it properly. Pick up a book.
If you want to critique it, dear ma'am/sir. Then why not write directly to the author, so that you'd be satisfied. Also calling someone a negative remark doesn't make you a smart hoe as well. (=・ω・=)
Bruh, if you don't want it, don't read it. Simple, also as labeled its fantasy why need to bring up real things.