You took his words out of context or did not comprehend his words. He's saying there are times that tariffs are appropriate, one of which is to protect industry from foreign competition.
On the contrary, I'm very familiar with Smith, and well understand the two cases he states for protection: (1) retaliation, and (2) phased protection in cases were tariffs are being phased out as well to avoid wholesale displacement.
Perhaps you should re-read what Smith is saying. My reponse addressed these two cases and posed the question of which one(s) where applicable in this debate. Please resubmit your reply.