Only if those "negative externalities" are illegal for everyone. In this case, they're perfectly legal activities. It's not a "break" or "subsidy" just becaus

Only if those "negative externalities" are illegal for everyone. In this case, they're perfectly legal activities. It's not a "break" or "subsidy" just because someone's allowed to carry on a perfectly legal activity. Look, if it is bad to use oil for fuel, then just tax it. But playing these word games is lame.