There's none so blind as those who will not see.
To some, there seems to be a simple solution. Leave the EU and everything will be rosy. There will be no need to renegotiate any trade deals, the UK borders will be secured overnight, that the millions of job (around 3 million - check this at www.fullfact.org) will be completely safe, that UK citizens will find it just as easy to work in any of the EU countries as they do now, that the American and Asian companies who build factories in the UK because of our advantageous tax systems and access to the EU market will stay, that the red tape that used to bind British firms dealing with 28 member states will not reappear...
Maybe some heads are buried in the sand, but other heads don't even realise that they're in the middle of a desert.