Mankind has needed heat and energy since the Stone Age. We burned wood, coal, then progressed to steam (heated from coal). This was foundational to chemistry, engineering, and started industrial revolution. Petroleum processing was possible because we had developed enough chemical engineering knowledge. Industrial revolution enabled working class to afford clothing, food, and shelter. Of course there was (and continues) inequity, but 8 billion people today couldn't survive without fossil fuels
This progress has enabled the design and construction of alternate means of energy today. Nations will migrate to green (for lack of better word) as it becomes economically feasible, correct? No reason to be fighting about it IMO we can all reduce, reuse, recycle. Accentuate the positive as that old song advised.