This has nothing to do with billionaires. You can decide right now to stop buying plastics, stop replacing your phone every year, give up your car and move to a city center, and stop supporting businesses that are oil based. If everybody who is concerned about oil consumption did this, oil consumption would shrink. Oil companies are simply meeting demand, burning more. Instead we want someone else to do something about it but no one can really say what that something is. Easier to blame the billionaires when the culprit is staring at you from the mirror. Well, if not you the who?
And I realize this may not be your specific behavior, but too many people squeal like stuck pigs when in reality it is they who refuse to change behavior.