What do you mean by that? What could possibly be negative about removing barriers to trade? Seems all the evidence is against you on this issue.
A zero tariff policy means that while prices may go down for consumers in the short term, capital flowing outward eventually undercuts any economic benefit you get from low prices.
The regurgitation is strong with this one. Ok riddle me this, if zero tariffs are so self evidently good, why is the USA the only country that does it?
The US does not do it at all. The US has always been very protectionist, at least with agriculture they are. I think Japan is the only country that protects their agriculture more.