Still not sure what's more remarkable- that they believed that or that they had the acumen to either build a business or be put in charge of one in the first place.There's enough evidence to say that a sizable portion of business owners were swayed by the "open to more worldwide markets" myth.
It just showed a basic lack of understanding and business owners wanting to be fed a lie. A lot of these people wanted Brexit and were willing to take any excuse to vote for what they wanted.
One of the biggest factors in international trade is geography. Too many decided to ignore it. The idea our exports to the EU can be replaced by exports elsewhere is not even reasonable enough to discuss.
Surely additional markets would be precisely that rather than just replacing the existing ones