biden destroyed 80,000 jobs that neither we nor canada could afford to lose, if that doesn't prove idiocy and dementia what does?

Your question proves your idiocy and dementia, Joe did not kill 80k jobs, Canadian Jobs are not Joe’s problem. 

He had no legal right to end those contracts.  Also I see some people believe that selling this oil overseas doesn't help the US or the world.  Actually the price of oil is determined globally so having a larger supply helps to keep the price down for all.  There are law suits in the works.  Also law suits due to contracts for the fence at the Southern border.

Leftists simply don't understand the industry of pipeline work.  Pipeline projects provide jobs that last from two to four years, depending on the size of the project.  Engineers, environmental experts, regulatory consultants, easement acquisition agents, law firms, construction companies, on-going safety inspection services and post-construction restoration contractors, make up the range of those employed for  projects across the country.  These workers move from project to project for new or replacement pipelines.  That is the nature of the industry.  Pipelines are MUCH more safe and economical than truck or rail transport.

The irony is that the union endorsed him. They are now having buyer's remorse, and have filed a lawsuit over the revocation of the permit, as in, not under his authority.

From what I've heard the Canadian Keystone XL pipeline was intended to bring oil from Canada to Texas (?) so it could be sent overseas via ships there rather than risking Canada's own environment building the pipeline across Canada which wouldn't that mean the U.S was getting none of the oil and that the U.S was spending a lot of money to build another countries pipeline, why would we want that? Maybe I'm misinformed please correct me if I am.  To me coal, gas and oil is going the way of blacksmiths of the past and in my opinion those who work in coal, gas and oil should start looking for more secure and stable forms of employment instead of protesting evolution.

Thinking temporary jobs are relevant seems like a sign of dementia to me.