I don't think humans can just "vote the rascals out" and live happily ever after. We vote those rascals in (or otherwise raise them to power) because we are not happy with our situations, and those rascals promise us they will improve our lots (perhaps at the expense of our "enemies'" lots).
The real problem with any sort of climate change is that it disrupts our existing material infrastructures and political structures by changing sea levels and temperatures and rainfall patterns, all of which have been established to support ever-growing populations of groups who do not agree on many issues. Groups of humans have been fighting in all of recorded history, and as far as we can tell, for all of prehistory, probably even before homo sapiens evolved. Over populations of other social animals do the same thing, such as wolves.
What we have lost by overpopulating our planet is the ability to move to different places as climate changes make our situations untenable in some locations. There are people already in the locations that become more favorable, and they don't want any more people there, "sharing" the limited resources. (But, they will reproduce their own group until they feel to crowded and start to fight among themselves - thus creating more separate groups).
Our problem as a species is really us. Unless we learn to voluntarily control our entire population size and limit our impacts on our planet's ecosystem, I am sure we are headed for a horrific population crash. And, even if we limit our population to the point that we have no impacts on our planet's climate, we already know that the climate goes through cyclic changes that make vast changes to the nature of various pieces of the land masses.
To become a long-term intelligent technological species we will need to learn how to live in a naturally varying planetary climate, rather than just try to turn our entire planet into a human-controlled biosphere with a thermostat with the humongous energy expenditures needed to support that.