> Nothing will change.
What would it take for it to change? Really? It is never too late to change.
But right now, the SF tech travel agents here and in the comments section are going to have a hard time at pitching that the city is 'safe' for them and now have to admit that it has gotten worse.
But maybe we should start with identifying the 'problem' which has something to do with 'who' is running those streets and seeing if there is a patten in other cities in the US...
Once you know, you will find your answer.