[tzs]

> If oil refineries are bad in California, they're bad everywhere

That doesn't follow. It only follows that they are bad everywhere with circumstances similar to California. A place differing in distribution of population, distribution of agricultural land, weather patterns, and/or water flows might be able to have refineries without causing the harms that makes them difficult to place in California.

[akoboldfrying]

I agree with your reasoning in principle, but I think it doesn't hold up for California specifically. According to Gemini, 90% of California's population lives in 5% of its land area, and 45-50% of the land is government-owned, much of it being unpopulated wild areas including large parts of the Mojave and Colorado deserts.

The state is large, diverse and already contains vast chunks of unpopulated land. Almost everywhere that isn't near the poles is similar to some part of California.