Every time I read remarks like that, I have to smile. If only what you claim was true. But real life experiments conducted through the ages by many folks has produced a different outcome than you would have expected. Some of these multi strand cables with certain types of insulation act as a significant capacitor. In RF coax cable they use teflon and airspacing to reduce these effects at RF. But at audio frequency it just gets accepted as irrelevant by many cable designers.