That isn’t true. First, you have to distinguish between the visible and invisible homeless. Homeless women who aren’t mentally ill or heavily into drugs are very likely to get access to a shelter at least, so you wouldn’t notice them (the same is true for men as well, just less so). And then you have mentally ill or heavily drug addicted women, you notice these in LA also. It isn’t clear to me why there are more men in this category than women, but perhaps they get more family or social support as well.