They cite inhumane, unconstitutional living conditionsdue to overcrowding as the reason why.
California has known since 1996 that this decision could happen and has done precious little in the intervening fifteen years to be proactive and fix the problem before it becomes a crisis. This is standard operating procedure for California. Pretend a crisis isn’t happening then be gobsmacked when it does.
See my recent CAIVN article for background information.