The trouble is that disagreeing with someone always has at least two effects: Changing viewers' confidence in the original claims, and taking some of the status

The trouble is that disagreeing with someone always has at least two effects: Changing viewers' confidence in the original claims, and taking some of the status of the original claimant as a person who makes correct claims. It would be nice if human communication had some sort of predicate whereby you could remove the second effect from your argument. But AFAIK it depends almost entirely on trusting the audience to decouple the argument from the arguer, which only a very few audiences can be trusted to do.