OK so the deductions required by the Swiss government will affect the net pay of these employees, but might I just remind folk that these employees could find accommodation just over the border in France - in the St Louis/Huningue area for a start - and therefore pay less than in Switzerland.
However, that 'little gleam of hope' does not remove the fact that the amount of pay for the conditions of employment (and the responsibility that the job requires), is unrealistic in terms of everyday living and quality of life.