Thomas Dai,
I think if you researched it, you would find that most states in the US have or are implementing water policies. I know Texas has. And, as you suggest, golf courses are pretty low on the list of priorities, with many areas of the country already cutting allocations for golf, some significantly.
Overall, I think they get it about right, although anyone can argue the details from their perspective. At one time, Ag uses were about 80% of total water used, golf courses about 1%. Not sure of any recent stats, to be honest. You would think they would work on the biggest users, but the ag lobby is pretty strong, too. Politics is a messy process. I am not sure if the "right" opinion always prevails. Usually, they pass some law that has everyone teed off to some degree, and in their eyes, that might be a huge success, meaning it was a good compromise.
Back to ag. Let's say they still use 80% of our water resources. Let's say Congress decides ag has to reduce irrigation by 20%, but at the same time, disallows GMO crops. It is their right, and has some reason to do it. That said, what is the answer? Go hungry in America? Stop exports that pay bills and feed the world? Or let them have all the water they are accustomed to?
So, no offense taken at any post, but its just harder issues than we can address in broad brush fashion here.