Stifle the economy with austerity? Unions never worry about the sources of funding for their perks. Unions contribute very little to the GDP, contribute very little to technological innovation; unions are a drag on productivity and the ability to compete.
Their apparent lack of understanding of how an economy works does not help them to accept solutions or recommending solutions to difficult problems.
The governments can only print, borrow, and tax so much to satisfy the insatiable appetites of unions. Is that not so?
There’s not a single “European leader” who can do anything about the economy - other than allow business to be business again. People have been dumbed down and made stupid, and their stupidity amplified via unions.