The argument that rich people are causing disproportionate environmental problems is proven by these two articles:

• Barron's reports that the world's richest 1% emit as much carbon as the poorest two-thirds of the population. This is extreme, and there are growing calls for progressive tax rates for richer people to redress the balance.
• Making the same point more personally and explicitly is this report on Reckon News, about 7 rich and powerful people who sacrificed the environment (our environment!) for wealth and power. The list of 7 people contains all the usual suspects (except, surprisingly, Elon Musk); the unusual member of the list is US Democratic senator Joe Manchin, who is not super rich like the others, but who has repeatedly blocked environmental initiatives in the USA because of the dependence of his constituency on coal mining.

If the richest 1% are creating the same carbon emissions as the poorest 67%, then we can solve the climate crisis just by forcing them to cut their emissions by half. It won't solve the problem overnight, but it will eventually.

People who control so much of the world's wealth have, anyway, a duty to take the lead in saving or planet; when those same people are directly responsible for causing the environmental crisis in the first place, it is time to force them to do the right thing.