Grasping at straws.  The government has been firm with parliament when they tried to call a Article 50 vote on it. 

Here is the government's response:

"We will reject any attempt to undo the referendum result... to hold up the process unduly, or any attempt to keep Britain in the EU by the backdoor by those who didn't like the answer they were given on June 23.

The Conservative Government of Britain holds a majority in the Commons and can defeat any attempt to overrule the brexit vote.