Well, may be true from the perspective of someone planning on visiting. I'd go there in a heartbeat, given a reason, and avoid the problem areas.
But, there is still the 750+ yearly murders to warrant it being an unsafe city, from a statistical viewpoint. In light of their limited view of individual protection, worthy of using to full advantage.
Getting the Gang Warfare under control is the biggest problem facing the City and that is the source of the vast majority of the killings.
We now have Concealed Carry laws. But the greatest protection is between the ears.