Those despicable anti-homeless spikes that appeared last week were just another example of what's being called "hostile architecture". We've got bus stops with slopes that barely prop you up, benches that are designed to prevent skateboarding or lying down, and all sorts of nasty additions to public (or what should be public) spaces. It's got horrible dehumanising, dystopian overtones and it makes me really angry.
The unspoken joke of the comic is that if we had teleportation technology like that it'd a) definitely not be used for good and instead used for something like this and b) probably cost a fortune. A fortune that could be spent on solving problems that contribute to homelessness and poverty, rather than forcing it to hide further under the carpet.