Re: Why use the word racist.
And that's why reductio ad absurdum is treated as a logical fallacy. Scenario: You are developing a technology to invigilate exams. This depends upon facial recognition. The people being invigilated may be black or white, but you only test on white people. Your product discriminates against black people because it can't recognise them. You didn't *intend* to adversely affect them, but you should damn well have tested your product to make sure that it didn't, and if you were unable to ensure that it didn't, you should not have certified that product as ready for use. That is casual racism; you do not intend to be racist, but you are, because you either do not consider the issue, or ignore it.