I don't know much about philosophy, but what if we can assume that legal rights end and moral rights begin only when we deal with someone's natural rights, is this tenable? If we take the Declaration of Independence as a starting point, as long as there is no danger to our life, liberty and pursuit of happiness, we should not deem ourselves as being in the power to judge what property we can damage ourselves. Sounds like something I could live with.
Thank you, this pretty neatly covers what I would have liked to add but couldn't find words for.
I find it pleasing to approach his approach as works and displays of art. Are they explicit calls to aggressive, rebellious arms? Maybe. Is he selling out from commercializing on his art? Perhaps. I don't really care to respond directly to either of those questions here.
Mainly want to give a shoutout to his Barcode stencil, which made a really big impression on me so far (I haven't finished the Banksy book that I found it in) and that I think is pretty fitting here. Looking around on the web, it seems there are variants, but the one with the leopard is great.
It's a pretty strong philosophical argument in that direction, in my opinion.
If you're disagreeing with that point, you should be explicit. You're arguing that these companies are paying for the advertising, but they aren't paying you to throw the rocks at your head, they're paying the building from which they obtain their vantage point. I don't think that actually qualifies as "paying for it", morally.