Earlier quoted context omitted.
> The Fourteenth Amendment explicitly constrains states It says states can't make laws that abridge the privileges or immunities of citizens. It does not say states have to provide whatever services citizens would like to have.
If a city chooses to operate a water system, that’s still subject to the Fourteenth Amendment. The Fourteenth Amendment constrains state and local government action. And the Preamble's "general Welfare" is relevant interpretive context. At the Founding, that meant the safety, prosperity, happiness, and well being of the political community. So the question isn't whether the Constitution requires cities to provide wat…
As the court's opinion points out (and as others have pointed out in this thread), there are plenty of other legal remedies that can be sought against a city government that allegedly poisons its people through its water system, including voting them out of office and bringing tort claims against them.