The climate crisis ISN'T the only thing we should be talking about. We also have problems with straight up pollution, and other things like countries like China that fish until extinction. There are 1000+ Chinese fishing boats parked in international waters off the coast of South America that are fishing until the point of extinction and then bringing the fish back to China, leaving nothing for the South Americans.
There are companies like Nestle whose CEO doesn't believe water is a fundamental right, and places like California and Canada that let it bottle water for essentially free and then sell it for more than gasoline. We have runoff of PFAS polluting water, we have so much pollution from microplastics, we have plastics polluting the Pacific Ocean, microplastics in our blood, etc.
So, NO. Climate crisis is NOT the only thing we should be talking about. That is utterly crazy, and sounds like something ISIS would say.