Describing the era of fossil fuels as "doped up" is not a way of saying that the progress that was made was not good: it's a way of pointing out that it was unsustainable, and irresponsible. There's no reason to believe that computers or phones could not have existed in a different reality where fossil fuels were used in a more restricted manner, owing to their inherent dangers when over-used. Not only could the use have been restricted, we could also have compensated for the usage earlier, and made less irresponsible choices in how we perform our agriculture and industrial endeavors. The insight into climate change is not new, it's not something we're understanding just now. We just didn't care until now.

There's a reason people get hooked on drugs, it's a very pleasurable experience, while you're still using it.