Personally,I think going long gold is a short on equities (that's how I see it anyway).
Just as CDS's (Credit Default Swaps = Corporate Debt Default Insurance = ...which were not swaps at all) are the traditional way to short a company's debts, or in the case of the book "The Big Short", a way to buy Insurance - and so benefit - from defaults on mortgage bonds....something hitherto unknown (CDS on companies very common), but which Wall St was keen to create, upon request. They made big bucks on these...until they didn't.