Not exactly, but there are more sheep in New Zealand than there are people, accounting for seven percent of its GDP. Don’t worry, they will do just fine.
The average duty rate in the US is 2.5%. So what if it doubles, it’s the closest thing we will ever get to a national sales tax.
Trade deals, like NAFTA, are always great in the short term for the US but are long term disaster to the US. In the short term, until the other country attracts foreign (US) investment, it helps US companies. However, after a period of time, the balance flips and makes it more attractive for US companies to shift production to the foreign country and hurting US workers.