What is the point of protesting against a water shortage?  It's not like protesting will make it rain more.  If a politician promises you more water if you vote for him, will you get it?

OK, there is some latitude in who gets the water, if it's going to irrigate farms and the produce is being shipped out, you can protest against that.   But if you are eating that food, you still are consuming the water.  Plus you need the money from the export bizness or you lose the farm jobs.

You can protest against climate change, but Mexico can't do anything about what is happening all over the world.  Mexico also has little control over how much water is left in the Colorado River after it has been drained on its trip down through the FSoA.  Protests in Mexico City won't change how much water they drink in Vegas or use to irrigate CA lettuce farms.

After a month with no water in your apartment in Mexico City, I would seriously consider leaving, although where you will go I don't know.  Is it better to trade that for a tent in a refugee camp in Brooklyn?

Climatic migration is going to be a big problem, and protests aren't going to be very effective for remedying it.

https://www.reuters.com/world/americas/mexico-city-residents-protest-unprecedented-water-shortages-2024-01-31/

Mexico City residents protest 'unprecedented' water shortages

RE