I think your problem is that you have large gaps in your reading comprehension.
As in, you read the thread title but only glanced at the content of the OP.
You implied he was racist when you told him that was the excuse racists use when they say the word nigger.
Oriental is outdated and ignorant but from UK perspective anyone I've heard use it (and it's not common at all anymore) just meant location. East Asian.
It's not been used in the way say Paki has.