What are you, as an individual able to do about any of that?

Think about it the other way, if you wanted to make it worse could you meaningfully? Could you make the seas rise by even a single millimeter? Probably not.

Now say you wanted to make it better, a single private jet trip for a CEO to visit his mistress will wipe out any gains you have made.

What does your worrying do? Great you aren't "willfully ignorant" but since your ideal future requires a miracle anyway, and you aren't God, it's out of your hands.

You are probably like almost every other person who has ever lived, you don't matter at all. Nothing you do will meaningfully echo throughout history. Once you are gone, nobody will ever say your name again.

What's true about you is probably also true about the human race. The sun will consume the earth eventually, we will either leave this rock, or die on it. Why not enjoy your brief time here?