Power dynamics are fluid. Oil and coal have a lot of power because they have a lot of money and a lot of employees and doing something that would completely destroy them -- which is necessary to save everybody else -- would require a countervailing amount of political capital on the other side.

But you start off with a dividend that would end up paying out more to the majority of voters than it would cost them to fund (because a significant fraction of the money would come from corporations and foreign oil interests), and that gets you a lot of support. Then you get all the companies that profit from the transition because they get to sell solar panels and electric heat pumps and stuff. Then you get all the people who are paying attention and notice that even if their current carbon footprint is above average, they could buy an electric car and switch to electric heat right away and still end up with a net profit from the dividend (which is still coming in large part from corporations and foreign oil).

You add up all those people and it's basically the whole country lined up against the oil and coal industries. It's the kind of coalition that can get a bill passed -- but only if people care enough to demand it. Majorities get screwed over left and right when they can't be bothered to organize.