You're looking at this through the lens of a trade-off: whenever we make technological progress, we take risks. Your argument seems to be that as a society, we accepted the risks of climate change when we demanded cheap energy, and allowing individuals who are hurt to sue the oil companies would ultimately force them to close, and put us, figuratively speaking, back in the stone age.
You also doubt the motives of the folks making this lawsuit.
I wonder if you really believe that, and also whether you're the kind of person who can change their mind when presented with a different approach? Because - if you were the billionaire child of some an oil baron somewhere, I would understand why you are making this argument... barring that I'm not sure why you would want to do so.
For comparison sake - I drive a car regularly. If I were to accidentally kill someone while driving - even if it were truly just a bad luck mistake, and even in a world where bad luck car accidents are statistically inevitable, I would be held accountable. Financially.
Suppose I said: "Accidental death is an inevitable risk of driving. Therefore, anyone who wants compensation for a lost loved one is just greedy, and I shouldn't be held accountable for killing the accidental pedestrian because that's just the risk society took when it decided to have cars." If I really believed that, would you conclude that I should be allowed to drive anything bigger than a tricycle?
We expect accountability from people who prepare food, build skyscrapers, and perform heart surgery. That's not about greed. That's necessary component of a functioning society. It also has not meant giving up on food, skyscrapers, or medicine. Instead, the people who engage in those activities have to take responsibility for the risks that come with their decisions.
So on the one hand - I get that there is a trade off between advancing our society and risking lives. But I'm less clear on why you would want those trade offs to be made without accountability by the people making them; and even more unclear on why, of all the people you could decide should be exempted from the normal rules of accountability, you'd settle on billionaires from the oil industry.