Folks like yourself, awash in heart-throbbing virtue signaling, will never yield to nor recognize their own dependence on our innovative, productive energy sector.  However, consider that petro industries account for about 4.5% of USA GDP but account for about 9% of ours. So, anyone with an IQ more than a grapefruit will see that canada cannot acquiesce this vital sector to the Americans who laugh in our faces as we penalize our  oil+gas industry.   

All those state-funded benefits you and I enjoy are the result, in large part, of the vast array of taxes generated by oil+gas.  As we embroil ourselves in Trudeau mandated structural deficits consider that $billions are being transferred to the Americans because of our country's hidebound energy policies. 

Think, study, read and weep dante1969.