It’s not necessarily meant to be used as an argument as such. It could also be intended as a rhetorical device in order to force the opponent to concede on ano

It’s not necessarily meant to be used as an argument as such. It could also be intended as a rhetorical device in order to force the opponent to concede on another point: Person A: We should legalize weed in order to be consistent [see above argument] Person B: Nonsense! Weed has harmful effects on society! Person A: Alcohol objectively harms society more than weed [insert citations here]. So you would agree that we should regulate alcohol more, yes?