> A rather large amount of Canadian industry is benefiting from these regulations. Adopting policies like these would be tremendously disruptive and cause a lot of short term issues, upsetting manufacturers, foreign owned subsidiaries (who employ a lot of people), unions and retailers.

Why?

This didn't even exist until 2011: https://en.wikipedia.org/wiki/Copyright_Modernization_Act

And how would something like banning parts pairing "cause a lot of short-term issues"? Existing supply chains would remain intact. They'd simply be broadened, eventually, by new entrants. If incumbents leave the market in a fit of pique, you can rest assured that the gaps will be filled, and that those incumbents may very well be liable for breach of contract if they refuse to service existing Canadian customers.