That's probably the biggest single contributor to the lack of political will. Not just the company bosses, though - a lot of the employees will have similar interests. Say there's an "oil town" or a "coal town", that's a lot of voters.
Certainly. It's an odd dynamic because the same people who want to eliminate fossils also hate nuclear. The trending political position is energy austerity, while at the same time electrifying everything. But that's just not going to happen. (Well, I guess it does in California with the rolling blackouts.)
Yes, after all, the reason that Texas is currently working on laws to block renewable power generation in favor of fossil fuel power is because their power grid is _too_ reliable.