That will partially solve the problem.

There are people who are homeless who just need a job or money or an affordable house. Low-cost housing and aid programs can help these people.

There are other people who are homeless who are incapacitated by mental illness and/or addiction and no amount of money or physical infrastructure will help them without a more purposeful intervention. Some people are afraid of living indoors, others would quickly ruin any shelter they were provided and make life miserable for their neighbors.

We need to rebuild our public mental health infrastructure and start involuntarily committing people for their own good. Letting a profoundly mentally ill person run their own life isn't empowering. It's cruel.