All hail the Moron's Messiah.
"The fastest growing economies in the world are outside the EU."
Indeed. Last time I checked, the fastest growing economy in the world was Cote D'Ivoire, GDP 32 billion dollars.
"We will trade with the commonwealth."
Following the second world war, likewise, Britain expected to trade with the commonwealth. The commonwealth wasn't interested and decided, instead, to trade with their nearer and better suited neighbours. The empire is gone and, without it, there's no obligation on the commonwealth to trade with us except if our economic interests align.
"Outside the EU we'll have no red tape."
One, if we want to trade with the EU all our exports there will have to conform with the European rules. Two, if we get rid of employment protections and things like environmental regulations and product safety, more fool us (and if, as people claim, it's "not about money", why on earth would we do this anyway?). Three, if we leave the customs union we've just added a motherlode of red tape every time anyone wants to sell something to the single market.
"The rest of the world will want free trade deals with us."
We already trade with those parts of the rest of the world that are prepared to trade with us and are worth trading with. The remainder are either protectionist in whole or in part (good luck selling services to India) or simply too small to bother with. And, in any event, why would a country be desperate to sign a trade deal with the UK, population 60 million GDP less than 3 trillion, when it wouldn't with the EU, population 450 million GDP 13 trillion?