You can replace US empire with human civilization and the same would be true. American Exceptionalism is just as bad in a negative way as it is when its positive exceptionalism.
No. Massive crude oil spilled into the watersheds of BC and Alberta would be far worse. The fact that this needs explaining to you is telling of your actual concern for the environment.
No see we increased the markets its available to instead of relying on the worlds largest oil producer bying it we can ship it around the world competing with all the other oil producers… (this is the argument they gave not me)
You smelt it. You dealt it.