If there is one country where an increase in public debt is not justified, it is definitely France

In France we see that: The private sector debt ratio continue d to rise rapidly in the wake of the 2008 crisis: the increase in public debt is therefore not used to correct the fall in private debt; There is a shortfall in savings (as shown by the structural external deficit); Public investment has not increased, and the rising public debt is therefore not counterbalanced by an increase in public investment; Capital accumulation is not excessive (the increase in the public debt reduces private capital).