While I would say no they shouldn't as it helps spur our addiction away from fossil fuel poison. This has had unintended consequences I can't ignore. We have farmers grow crops that don't feed anyone but for fuels taking away from the food supply. Farmers should be growing food to feed people not to fuel energy hungry cars n trucks n whatnot. We have food shortages in certain countries n regions because of this practice that is not sustainable. Farmers should be just that farmers growing the food we eat not taking it away from hungry people for others energy needs/wants.