Humans aren't good at relativity, especially after an emotional response has already happened. Which is why despite blacks being the common element, we can't ignore the white ones happening even if its rare enough to not even be a statistical blip.

You have to preempt their argument by knowing what they will bring up and have already addressed and dismissed it. Which is kind of what Clot Adams was doing, but poorly. Explaining why it happens quietly and simply so that it can be dismissed when they try to use it.