"An increase auto manufacturing industry in the USA will directly benefit Canada, it always has and it always will."

Please explain.

Trump's aids have said he wants to move production FROM Canada TO the US. How does that help Canada? We get to sell them more Maple Syrup?

The collapse of our Manufacturing exports from 1999 to 2014 was due to our over reliance on the shrinking US Auto sector, how was that good for Canada?