The violence in France will happen in Britain because nobody has the balls to acknowledge the truth that we are already at war and do what’s needed.
Shoot the rioters dead. Ignore the judges, tear up all ‘human rights’ legislation and treaties, and start mass deportations at gunpoint back to their native shitholes, whether they were born here or not.
If any country refuses to take them, put them in concentration camps on bread and water until they choose to leave. Cancel all foreign aid and all visas from those countries forever, and confiscate all their assets.
This is the moderate position.