You’re trying to move something with the inertia of an entire planet’s economy, which represents an incredible, almost incomprehensible amount of effort. Inertia becomes an incredibly powerful force that inherently maintains the status quo when you’re talking about huge systems with vast complexity. Yes, there are real challenges (which can be overcome) and yes there is real opposition from entrenched interests who stand to profit (or lose) significantly. But most people underestimate the amount that sheer inertia plays not just in this situation, but in all sorts of different situations, especially when you’re talking about global issues or societal progress. Human minds and values cannot be changed with the snap of a finger. Individuals perhaps can, but as a civilization it often takes decades, or even centuries when the change is massive enough, even when technology itself moves much faster than that.