Some of this problem on the west coast is self-inflicted. Not only are there incentives for the homeless that attract them from across the country, but there are incentives for illegals as well. @scubadiver tried to raise the topic, but it was ignored.
Large numbers of low-skilled illegals depress wages for low-income Americans. They also increase demand for housing, driving rent prices higher. Funds that could be used for homeless Americans are used to educate illegals, feed them and provide healthcare.
Would removing illegals immigrants and stopping illegal immigrants from entering the country solve the homelessness problem? No, but higher wages, more affordable housing and additional funds for services would certainly help some of the homeless.
And yes, wealthy elites that advocate for the homeless while fighting low-income housing in their neighborhoods are simply virtue signaling. The thought police do not get to dictate vocabulary that provides an accurate description.