FFS. Unhoused is a subset of homeless people. Many homeless people have some kind of shelter. Couch surfing, vehicles, etc. IIRC, unhoused specifically means sleeping rough, eg outdoors.

These distinctions are being made because

   silver bullet policies are failing, 

   most laypersons equate homelessness with the visibly unhoused, 

   and the homeless population is much bigger than just the unhoused.

For a bunch of pendantic nerds who debate the finer points of type systems, the emotional rejection of an ontology meant to foster better policy is rather bewildering.