I don't see where an American artist would get involved in the issues or the politics surrounding a new arena, so this is a bit of an odd story. Geoff Barrow of Portishead has engaged the mayor of Bristol, England in a back and forth about whether or not it would be a good thing to build a new arena in the city.
Concert revenue is one of the few things that can sustain a performing act; if you can't play live, your options of surviving in the music business shrink down to nothing. So, perhaps it makes sense for artists to start paying attention to the places where they might play and to the communities that might support those venues. Being ignorant of economics is a quick way to end up being an ex-musician.