to 'help' them, as you suggest...those professionals need to be paid, as well as program management staff for those services...that takes public funding...i.e. taxes...are you up for that?
Those into drugs are often beyond 'discipline'...they need their 'fixes' and will commit crimes to get them...plus they'll likely end up in ERs for one reason or another...we've had this problem for ages and no one has come up with a 'perfect' solution...do you want to 'corral' them all so that they don't run around committing crimes and getting sick?...if so, be ready to pony up some cash for facilities and staff...again...more taxes...or, continue to let them run free committing crimes, etc.
"Giving people food and shelter needs to require something. SF doesn’t require anything."...you left something out here...NP...the word processing here goes haywire sometimes...but what is it you're suggesting?
Again...CA is a beautiful place with good weather, so it's no surprise that homeless people don't mind coming...even if pushed out of their home states...Google "The Guardian, Bussed Out" for an in depth analysis of how states like CA get inundated with homeless persons...one way to deal with this phenomenon would be for Congress to pass a bill that provided tax funds to states who are being forced to act as "homeless shelters" by irresponsible states...