Okay - let's imagine that by this time tomorrow, you successfully eliminate every single billionaire and corporation that's a contributor to climate change.
What happens next? Do you actually think the climate is just going to spring back to what it was? If so, you're in for a rude awakening.
Climate change is a done deal already. It has far too much inertia - even a dramatic change is only going to make a notable difference somewhere far down the line.
So entirely regardless of whether and to how much of an extent we might be able to enact societal or political change, we're going to have to cope with some fairly significant climate change. And that, I believe, is where people should be putting most of their focus.
That's not to say that I disagree with you fundamentally. In fact there are very few solutions to the problem of the outsized influence of a relative few wealthy scumbags of which I wouldn't approve, or even willingly take part. But at this point, that's more just (well deserved) vengeance - it's not going to make a dramatic difference in the climate change that is already in process. It's already too late for that.
80 years of jingoistic propaganda to excuse ever greater oppression, violence and murder has created a nation of psychopaths.