"Canada swims against the anti-trade tide"
Correction: Trade deals are only peripherally about trade.  What we are against is international corporate hegemony.  

"At a time when the pillars of multilateral trade are teetering"
Translation: Trade is fine; there's no issue with the benefits of fair trade.  Transnational environmental, labour, and tax abuses have destroyed the environment, the middle class and depleted our capacity to maintain increasing tax rates.  Infinite offloading of costs and consequences to governments and citizens has reached the point of unsustainability.  Cheaper appliances from China can't fix that.   

And CETA is a really really bad deal.