If you actually lose money on a per unit basis at massive scale, then either you're doing it because you've got a long term plan that's going to make much more

If you actually lose money on a per unit basis at massive scale, then either you're doing it because you've got a long term plan that's going to make much more back and access to investment, or you should stop... The trickier bit with revenue taxes is that businesses operating in ideally competitive markets naturally have very small margins over the long term anyway, so they (and their consumers) are penalised more than the oligopolies