The "fight" is against human values of a disposable Earth. We could never win a "fight" against climate, as that is something forever changing.

We gain power, psychologically, when we see what we are capable of doing, such as in WW2.

When we see ourselves as heroes, and allies, we conserve, plan, innovate tech, and work with Nature's bounty.

Also, with a stubborn human streak, we persist, long after most of us have died