What does Waldron mean when he writes, “The homeless have freedom only to the extent that our society is communist.” What is negative freedom?

Questions on Waldron’s “Homelessness and the Issue of Freedom”
How does Waldron define collective and common property?
What is the libertarian proposal and why does Waldron think it is wrong?
What does Waldron mean when he writes, “The homeless have freedom only to the extent that our society is communist.”
What is negative freedom?
In his work on hate speech, Waldron emphasizes dignity. How does that concept apply in this essay?
What are the practical or legal implications of this argument? Does it help you reach a judgement about whether you support the City of Toronto’s decision to clear homeless encampments?