The Earth’s moon never had enough oxygen to support organisms anywhere. Nor has it ever had enough atmosphere to support H20 in liquid form. H20 on the moon is like C02 on earth. You can freeze CO2 into a solid (dry ice) but it will sublimate directly to gas skipping the liquid form entirely.
The moon simply does not have enough mass to have an atmosphere in the planetary sense. Atmospheric pressure and volume are directly proportional to the gravity, and Earth’s moon just doesn’t have enough.
Refusing to drill and use every drop we can, because there may not be enough to last 1000 years,,would be like having a bag of doritos on a road trip. And insisting nobody eat them because the bag will not provide doritos forever.
When the doritos are gone, then we will either starve, or find something else to eat. What am i missing??