"Don't you think it is time to fix your corrupt politics to look after the voters instead of donor corporations?"
It is naïve to think this is driven by "donor corporations." The donor corporations are on board with making the compromises you speak of. And what do you mean fracking is not regulated in America? It is indeed regulated -- under the Federal system, there are states that allow it and states that outlaw it outright -- there does not seem to be any political middle ground that you speak of.
This is driven by voter pushback against what is perceived to be the agenda of the crunchies (USian term-of-art meaning "granola-eating" for knitted yogurt uneducated environmentalist activists, only they are far from uneducated as they hold college degrees, but they are resentful that their degrees do not merit them more highly paying occupations) on Mifflin and Williamson streets (place names in Madison, the capital city of the State of Wisconsin, United States of America). People who don't want nuclear power or fracking in any form and a whole bunch of other things. People who associate all of that with the "U", which has slashed our budget in very legislative term.
Politics is not about "truth", it is about voters "feelings." If you want to advance the agenda of reducing CO2 emissions, you are going to have to do a much better job "triangulating" than "Kill millions of brown people through seal level rise in places like Bangladesh."
The people in Wisconsin outside Madison aren't motivated by being scolded that they are callous to the projected deaths of millions of people, that is, according to a worst-case scenario that the U.K. had fact-checked from "An Inconvenient Truth", deciding on showing it in their schools with a disclaimer. Adding "brown people" is also indirectly claiming that the callousness stems from the affected persons being of a different race. The sum total of such criticisms is 1) not helping fund the University of Wisconsin-Madison in educating and conducting research benefiting our state, and 2) helping the vulnerable people in low-lying Bangladesh.