It is mentioned in the article about a woman working full time, yet still unable to afford rent. I think a big steps towards resolving homelessness should go in addressing the housing market; which in California is really really bad. This isn't just "build more homes" (which is already an extremely difficult task in the state given the zoning laws) but comprehensive housing policies. Take a look at the way Austria ha…
Construction of new houses (up to modern standards) has not kept up with population growth. Population growth has been higher than birth rate due to migration; I wouldn't be surprised if in 10, 50, 100 years, historians will look back on this period and call it a mass migration event due to climate change, war, economic whatnots, etc.
The market / the economic powers that be overcorrected after the 2008 crash, causing interest rates to be really low for a long time. This caused both high end investors and relative laypeople to invest, amongst other things in housing. Some people were able to buy a second, third, whatever house and rent it out, and with private rent, the amount they can charge was pretty much unlimited. That removed houses from the market, and made it so people couldn't afford to buy a house or build up any kind of posessions - if you own a house, the building is yours to keep, and the mortgage payments pay off the loan, if you rent it, that money is just gone, you don't build up anything.
Minimum wage hasn't gone up, wages have not kept up, and employers have been getting away with tightening the thumbscrews on their staff for a long time now. With that in mind, minimum wage is a patch; if people are paid minimum wage, their employer would pay them less if they were legally allowed to.
Inflation. That won't get better, with energy crises, climate change causing crop failures, etc etc etc. Speaking of climate change, it will cause both water shortages (also due to overconsumption, e.g. through irrigation) and consequent mass migrations; people can't live where there's no water.
There's probably a lot more, but you get the idea. Shit sucks and there's no quick fix.