Yeah but every chlorine atom up there is a nanomachine that destroys all ozone molecules it can touch, and it lasts one century in average. So, given enough, no amount of ozone generation can compensate.
It seems to me, looking at the chemical reaction whereby a chlorine atom breaks Ozone into two O2 molecules and then two O2 molecules form Ozone, that it actually increases the amount of O2 that is available for forming Ozone.