Liberalism is a political-economic ideology that gives a friendly face to capitalism. While market discipline enforces inhumane measures like a park bench that prevents homeless people from sleeping on it, simultaneously the same society produces the friendly face “solution” of a small, overburdened charity organization to help homeless people.

So the state, which has the authority to enforce public park design, or, you know, regulate housing, won’t help. The liberal solution to systemic social inequity is charity.