> Other states pay for addicts/homeless to be shipped off to California

This has happened but it's not substantial, most homeless in CA were living here and homed before becoming homeless[0]

> San Francisco has a drug problem simply because it’s one of few places in the country where it’s safe to have a drug problem

I've spent a lot of time volunteering with the homeless in SF. This doesn't match the data or anecdotal experience. Many drug addicts follow the path of becoming homeless (overwhelmingly because of cost of living) and transitioning into hard drugs to cope with the pain of living on the street.

[0] https://homelessness.ucsf.edu/our-impact/our-studies/califor...