Earlier quoted context omitted.
I have visited almost every major US cities including a lot of experience living in and near some of the “worst crime” cities. Cities where there really are streets you do not dare go. In San Francisco I never felt unsafe anywhere, even in the “worst” parts of town. That said, the concentration of homeless people when I last visited was unlike anything I had ever seen in a US city.
I'm a city native living in SF, but grew up all over the SFBAY including much, much rougher neighborhoods than anything I've experienced in SF. Several of my family members and myself have been assaulted/robbed in broad daylight, had cars stolen, and some have been shot by stray bullets due to a local gang fight. When I was in grade school someone brought a gun to class and showed it off by pointing it at me (!!) — a…
You’re absolutely right, but compared to other global cities SF often looks comically bad, and certainly has the appearance of decline. No fundamental reason it can’t rise again though.