That doesn't mean any particular person has to work to survive, nor that people's work ought to be under someone else's control (a practical definition of both slavery and employment).
There are many homeless people who don't work and survive off their loss of dignity, begging and The State. They are .. indebted to the State. Welfare creates people who believe they are getting a hand up, but now will favor policies that disincentivize adding value so they can continue their gibs.
Like I said, employment means you can leave and you get paid money fungible for goods. Slave can't leave and get discrete resources to survive. Once again, the whole point of me started was their bullshit of watering down real slavery.
We'll have to disagree on the work thing. If you're not even making an effort to contribute to society and expect free gibs, just fuck you man. If you actually volunteer to work with homeless people, you'll find there are those who genuinely hit hard times and want to get out of their situation. Maybe even a quarter to a third in some cities .... you'll find a good amount though that are shitty people who've fucked over every friend and family member so no one trusts them enough to help anymore.