I don't know about France, per se, but in most western nations, gasoline/petrol used by farmers is not taxed (or taxed much less) vs the same fuel used by indus

I don't know about France, per se, but in most western nations, gasoline/petrol used by farmers is not taxed (or taxed much less) vs the same fuel used by industry or regular people. I suspect france was the same. The yellow vest protestors mostly originated from rural areas. It was, IMO, yet another example of the growing urban/rural divide.