Your question was, "Who buys and burns most of the fuel they create and why?" and I answered it and explained how it works. It's mostly industry The answer is absolutely not simply "consumer choice", which is quite clear if you review my simple 2-point list.

Here I'll write it again:

1. Industry that produces commodities for sale in rich Western countries.
2. Industry, military, and direct individual consumption in rich Western countries.

The cause of this is not individual consumer choices, it is capitalism - it seeks to increase capital and nothing else. Capital does not care about the emissions of growing fruit in Central America, packaging in Thailand, and selling in Germany. It cares that you buy the fruit cup for more than they spent on it. And to make that happen, capital had to force wages and production to be depressed and scattered across the globe. And it’s not going to waste money on making the processes themselves independent of fossil fuels so long as fossil fuel prices are low enough - and it keeps them low by constantly seeking more extraction for profit.