FN's Florian Philippot says French President François Hollande should 'follow the British example' and hold a vote on EU membership.
Deal between Paris and Berlin on tighter political union seen as blow to British premier David Cameron's own hopes for treaty changes.
The result is because Britain now includes earnings from drugs and prostitution in its GDP figures, which France as yet does not.
In lengthy TV interview the under-fire French president also said that he would not stand for re-election in 2017 if jobless rate does not fall.
But plan by interior minister attacked by charities who say it will resemble the notorious Sangatte Red Cross welcome centre closed in 2002.
The mayor of Calais returned criticism when she appeared before British MPs on the issue of numbers of migrants crossing to UK from the port.
Thousands of French people have taken out private insurance with UK companies amid growing frustration with 'sick' public system.
Experts predict 75 percent chance virus could be imported to France by October 24 and 50 percent chance it could hit Britain by then.
The agreement announced on Saturday provides for tighter border controls and increased cooperation between French and British police.
Just over half of French people polled want Britain to quit EU, with only 42 percent believing Brussels should take London's concerns into account.
British immigration minister says fencing could replace the 'inadequate' barriers at the French port as tensions rise over migrant issue.
Natacha Bouchart says town is held 'hostage' by about 1,300 migrants and will block port unless UK does more to control their numbers.
Forty French nationals have been evacuated by ship along with seven British nationals as battles rage between government forces and militias.
Officers clear makeshift camp housing some 500 migrants at a food distribution point close to the French port where they had been squatting.
Former French premier Michel Rocard argues the UK is stopping the European Union from finding the democratic force and legitimacy it needs.