Akka
Moody old mage.
That's pretty far-fetched. The last time the far-right was able to do some coordinated attack was 50 years ago, and it was in a MUCH, MUCH more serious situation (an actual war were France had one million people and a good chunk of territory at stake).Unless they could pull off a false flag operation. Conducting an attack that looks like it was done by immigrants would be certainly be effective. But it would be quite hard to accomplish, so I doubt that this is the case.
Killing hundreds of people just to stop immigration seems pretty insanely out of proportion compared to what they look like today, especially as they are rising in the polls.