No, it would either strengthen their argument or weaken it. Hiding/ignoring the obviously relevant data, it looks like it would've weakened the point they are m

No, it would either strengthen their argument or weaken it. Hiding/ignoring the obviously relevant data, it looks like it would've weakened the point they are making, ie. that its persuasive effect has been engineered. If the effect is as profound and as they say (police pull over brown-skinned people because of their skin color and not something else), be convincing if you are convinced of it. Show the data, not just the subset that most cleanly states what you set out to state before analysis. Maybe it shows that black people usually drive Mazdas or whatever and that those are targeted by law enforcement. Maybe it doesn't. We don't know. They've controlled for daylight. Not traffic offense. Not Mazdas. Why not?