Paying for desalinated water should absolutely be an option. If a household can’t afford it, then a necessary normal amount should be provided, but let others fund the infrastructure we need.
Politicians and activists keep saying there are other solutions, but all seem to target the most efficient users and not the 80% (agriculture) that actually can make the difference. Even our own water officials admit that there is not much to be gained by being even more efficient with toilets and such.
Another crazy point - apparently for liability reasons, recycled water that’s not potable quality (meaning just fine for watering, but you shouldn’t drink it or use in a pool) cannot be delivered to consumers. They fear consumers will screw up and connect it to potable pipes. There is a pretty simple solutions there too - they are called back flow prevention devices.