@Gunniblo Please explain me why should I stop being sensitive about something as horrible as this is? I don't know which country you live in. Maybe this is the reason for you to think that it's not a big thing to use such expressions.
I live in Germany and I really do know what it might cause not to be sensible about discrimination. In Germany we say "Wehret den Anfängen" which means to defend against the beginnings. This is a cause of the very bad experience to miss the point at which you still can end something bad. It is very very important to be sensitive.