Turning raw crude oil into refined gasoline is also manufacturing. Refinery jobs are usually good paying, non union jobs, so naturally the Dems want to destroy them. A common excuse for opposing the Canada Pipeline is that it would only bring oil to southern (non union) refineries who would then sell the refined gasoline to China. Even if true, wouldn’t that increase both manufacturing and exports?
IMHO, the Dems want to destroy as many good paying jobs as the can, union or not. Why? Simply because they benefit when people are dependent on Government. They figure they will always be able to print enough $$ to fund the Entitlement Sate.