Not just that, practically every petrochemical (plastic, fertilizer, synthetic rubber, etc) is derived from oil and/or natural gas. We need more fossil fuels to make the green tech in the first place (in the form of mines, powering factories, and producing petrochemicals). To convert the entire globe, we actually need to be producing a lot more than we currently are!

Sure a day may come when there's enough solar/wind/nuclear to restrict oil/natural gas to petrochemical production, but until that day green tech, like all others, follows the price of oil. You want to cut oil production now? Say good-bye to the green transition.