If you accept some amount of coercion to defend private property, why not some amount of coercion to ensure people have a roof and food ?

We have this in America and I think most other wealthy countries. We spend many tens of billions of dollars on food assistance for the poor, and a substantial amount on housing assistance. It's not even all that controversial, politically.

(The food part works much better than the housing -- public housing projects in the US are notorious for sometimes being badly run to the point of being unsafe.)