I live in Mumbai City. I've walked inside Dharavi and Matunga Labour Camp many times.
I've visited the Bay Area. The only time I've been scared for my life is when I wandered the streets of San Francisco.
I agree with you that Mumbai has many problems, and you may call me deranged all you want, but trying to diminish the very obvious problems the Bay Area has (some much worse than Mumbai) is not going to do you any favors.