Why would most of the climate change deniers care when they're not gonna be around to see the consequences anyway. Trump especially... he's gonna be dead in 15-20 years. Why would he care. Can I make money now, gotta make money now.
Sadly this isn't going away anytime soon. We have an intentionally divisive ignorant man as arguably the most powerful person in the world, with his followers seeing him as a hero. Good times.