Those who crow about the “legality” of tax avoidance are, of course, being disingenuous. The state has not passed laws permitting certain schemes in the same way that it has, for example, allowed the legal sale of alcohol.
Rather, the government hasn’t banned ownership of foreign assets in the same manner that it has not banned the legal ownership of Cabbage Patch dolls. Simply because our system works on the idea that everything which is not specifically illegal is legal. We do not have a law which makes it legal to be Owen Jones. We simply do not have a law which makes it illegal to be Owen Jones.
I would also note that this piece of his does not have a comments section – in common with all of the Guardian’s coverage that I’ve seen of the Paradise Papers. There’d be too many “Oi, but what about your tax arrangements, Scott Trust Ltd?” I assume.