Wow, you managed to pack an appeal to authority, an appeal to ridicule and an ad hominem all in one sentence! Topped with a cherry of FO which I assume means "fuck off".
If you are actually any older than millennial (as you claim) I'd be very surprised but it doesn't matter.
You believe whatever you like. Swallow propaganda or not, google around for links that support what you believe, doesn't matter.
The experiment with fossil fuels is going to play out for now and we will see the results. Probably a warmer wetter world in some hundreds or thousands of years. And we as a species will be fine. But in your life, and mine, we are unlikely to see catastrophic climate change.
Oh, and the reefs will still be there as well. You can go see them when you are old which is probably a ways off for you.