Technically speaking liberalism is about letting business do whatever they want without regulation. Some of those regulations are unions and fair pay and fair labor laws. Those things all do a good job or eliminating homelessness. Social programs could easily end homelessness, and a functioning, non abusive foster care system would eliminate a huge amount of homelessnes, poverty and crime. These require regulation business and taxing the wealthy sufficiently too fund program that help orphans, children in general, and the working class who have been largely shoved below poverty, the rest of our social problems would be eliminated by an education system that is geared tower maximum education for everyone capable and NOT saving money and making sure we don’t accidently educate poor or non white children too much.