Proof required.
Drop in value of sterling; the drop on the Stock Markets, both here at home and around the world; the political fallout; the economic fallout and indications that we will be appraoching recession (even if we manage to miss it by fractions, for several years. Need anything else?
They predicted collapse and WWIII and all that. Are you really saying that everything has crashed and burned?
In fact, the Remain camp predicted that the currency would fall in value; that we would fall towards recession; that the global econoy would be hit; that stocks would fall.