The probability of Canada engaging in a war with China is zero. So if you cut through the BS, the article basically boils down to this:

All the talk of NATIONAL SECURITY is about protecting the great military industry of the great United States of America. The American weapons industry has a leg up in the laser weapons game. By prohibiting the sale and taking a hit on OUR Canadian economy, we *may* prevent a Hong Kong based company from catching up as fast and competing with American Lockheed Martin.

This comes at a time when the USA doesn't see us as their friendly neighbour and is ready to throw us under the bus.

Remember. A new sheriff is in town. He likes us as little as he likes Mexico.