This is yet another one of those moments where the audience is left to wonder what was the point Halsey was trying to make: "The increase in health disorders is too small for this to be a poison shot".
Surely Halsey knows about the long term side effects like VAIDS, or the huge increase in excess deaths. Yet it seemed he was arguing that these aren't "poison shots"? Interestingly enough, Nick Fuentes says the same thing, I guess him and Halsey have something in common after all.