What he's really mad about is that government statistics show that pesky 13/52 thing. If they'd just drop the "race" column from their crime data, we wouldn't be able to notice that pattern. He envisions a future generation that has no way to prove that one race commits more crime than another. "Mazel tov!" He must be thinking, "that would be shutting it down on a whole new level!"
What he's really mad about is that government statistics show that pesky 13/52 thing. If they'd just drop the "race" column from their crime data, we wouldn't be able to notice that pattern. He envisions a future generation that has no way to prove that one race commits more crime than another. "Mazel tov!" He must be thinking, "that would be shutting it down on a whole new level!"