"means France suddenly becoming like the 1940's Soviets, or Mao's Chicoms?"
There's a real problem with your position.
The barbarians are not "at" the gates, they are inside the gates. There ain't but one way known to man to get them back outside the gates again.
Just as there is a difference between pushing a little old lady out of the path of a speeding bus and pushing a little old lady in front of a speeding bus, taking the measures necessary to defeat this latest mooselimb attack on Christendom is hardly the the equivalent of "the 1940's Soviets, or Mao's Chicoms."
We must not let the fear of becoming like the enemy prevent us from doing what is necessary to defeat him.
Do you think the old Stalin Soviets, or China's Mao, wouldn't have killed this Islamic vermin? Inside the gates or outside the gates. They would have been slaughtered.
Odd that even now we don't hear of any of that scum migrating to China. Hmmm?