“What are you doing to help homeless people who want to get off the streets?”
Not “What are you doing to end homelessness?” This is impossible and also takes a sinister turn when certain people feel that all homeless people are garbage and better off dead.
Not “What are you doing about the homeless problem?” This question (actually a statement) makes political leaders feel that the inconveniences felt by tax payers are somehow being elevated above the rights of every homeless person. If you have four walls and a roof, your problems, compared to many homeless people, are minor.
The question “What are you doing to help homeless people get off the streets?” acknowledges that there are some homeless people who WANT TO GET OFF THE STREETS, and puts the political leader in the position to talk about job creation, shelter options (and availability), economic equality through strengthening civil rights, and keeping costs of housing and basic living expenses under control. They can do those things, to benefit those who need the help, make them accountable.