President Trump did a great job addressing one “root cause” of homelessness - jobs. Illegal immigration may be another root cause, directly as the non-citizen homeless, and indirectly as taking jobs from citizens who then become homeless.
Why so much unemployment? High energy costs reduces manufacturing and farm jobs. Higher energy costs, increased crime, lockdowns, etc., paying people to stay, tend to increase prices and reduce the amount of goods and services provided. We hire people to produce goods and services. So fewer goods and services means less employment and more homelessness.
Biden and team have been a disaster. The root cause of homeless is the election, honest or not, of Democrats.
Most homeless do not want jobs, and they could not hold a job if they got one. Years ago, those people would reside in mental institutions.