I've seen that from some defenders of the "Leave" voters, that they voted to leave the EU as a protest against the continent's ruling class.Big referendums have a tendency to become proxies for other kinds of discontent, where people vote "no" just to spite the elites.
Eh. No. It is not binding.
It's silly wasting money on a referendum if nothing happens. There again Labour and Tory are good at doing this after winning an election so you may even have a point though it is an outside chance. If the government does not follow through this is likely to backfire.
Big referendums have a tendency to become proxies for other kinds of discontent, where people vote "no" just to spite the elites.