They do not care about preserving the environment until they themselves get hit hard or are threatened to get hit hard.
Most people do not even think about how the situation with the environment is in a deplorable state. The fact that because of those destructive actions of people there is a threat to the continued existence of our humanity as a species.
But on the other hand, such statistics are understandable. After all, all global environmental problems will become catastrophic only after a few generations, when we will be gone...