He said another factor was the obvious differences in the economics of wages and conditions.
"There are no trade unions in China, and the Auto Workers Union virtually bankrupted the motor industry in the US.
"I can't imagine Apple moving iPhone production to the USA, if it's ever been there to start with. Assuming he puts a tariff on Chinese-made electronics then US consumers will pay more and purchase less so China will retaliate."
Mr Bennett said some US helmet manufacturers moved production to Mexico 20 years ago although some continued production in mainland USA.
"As far as I am aware our US distributors don't pay duty on helmets we send there so the question is will Trump change that?"
However, he said if Mr Trump managed to deliver on his promises then New Zealand exporters may benefit in other ways with a strengthening in the value of the US dollar.
"A strong US dollar means when we convert to the Kiwi dollar we get more NZ dollars except when we pay for things in US currency," he said.
"But I suspect that unless he can pull some rabbits out of the hat quickly, the people who voted for him will be very grumpy in four years."