Here is an idea: Fix your homelessness problem and don't let other policies be guided by the best way to keep homeless people out of sight.
Most of the homeless in SF and LA aren't from California. Red states love to "deal" with their homeless by buying them bus tickets to the West Coast (something that Texas used to openly brag about).
If SF and LA shipped the homeless back to where they originally came from, we'd all be talking about the Midwest homelessness crisis.
Schadenfreude is the dominant feeling of the times, and many if not most Americans would basically celebrate a “purge” of the homeless.
In places with less affordable housing, there is more homeless people. The solution to homelessness is to build more housing.
That's the solution a 5 year old would come up with, too, but it's correct.