On the other end of the spectrum, leaving the EU, but remaining under all EU regulations, staying in the free trade / free movement / etc laws, being in a similar position as now, paying massive divorce bills and paying essentially membership fees / EU taxes with no return EU investment into the UK and with no voice or representation in the EU politics at all, the whole 'vassal state' thing, could be technically "leaving the EU" as well. But that's also not what anyone voting to leave meant either.
"Out at any price / In at any price" is as absurd a polarisation as the above examples.
People have been trying to paint this as a binary issue - ever since the referrendum put it in such a YES/NO terminology. But we're not binary creatures, life is messy and complex.