Every community needs to take care of its own. It's wrong for small towns and rural counties to ship their problems to the nearest city, "because they [the city] have [social] services." That was an excuse often heard in the past, and it's just as wrong as New York City giving its poor one-way tickets to other cities. NYC was recently called out for doing this, but I don't know whether they've stopped. There is no simple solution. There is a need for adaptability to local circumstances and for experimentation. But we should know enough by now to know that concentrating the problem creates a toxic environment that defeats even heroic efforts to help. The problem needs to be diffused. The response should be decentralized. The magic word is subsidiarity. Let each community take care of its own.
The problem in California is that it's run by leftist lunatics who have turned their cities into Meccas for the mentally ill and addicted street people. They have invited an influx that has overwhelmed their local shelter capacities. They have to unwind that first.
NYC is busing theirs outta town to places like Texas. Austin, TX city council is buying hotels to house them in. Ok, make that the taxpayers are buying hotels because the hippy dippy treehugging volunteers building tiny houses for them can't keep up with the increase.