The pilot IS NOT RESPONSIBLE AT ALL in case of False Selfe Employment according to EU legislation.
It is ALWAYS the EMPLOYER who is guilty of employing an employee under false self-employment pretention.
Hence, in the Netherlands, the EMPLOYER, NOT the employee is responsible to pay not only all taxes, social security to the State, but also ALL normally received bonusses, holiday payments, sick payments etc to the pilot.
It is NOT the Pilots who are in trouble for they are victims, it is RYANAIR who is deemed guilty.