Water has to be cleaned. It is renewable, not free. My city has many sources, but most places where they build datacenters do not. It is a real problem

Either way the biggest proble, IMO, is the pressure on the electric grid. If the asshats building the centers would cooperate with others, there would be much less problems.

As for power usage, yea its a lot but still not an insane amount. The image and video generation uses a LOT more then text.