They have it wrong anyway, if there was a further referendum it must be "you accept the deal as it is or you vote to just get out and trade with the rest of the world as intended"
Their will is paramount importance. You are mistaking it's value with the fact that it wasn't legally binding. It wasn't legally forced to be rejected either; and a democratic parliament is morally obliged to enact it or it can not claim to be democratic. I'm certain, judging from your past post record, that you can get your head around that, but in my opinion you choose not to admit it.