Can established indirect unequal treatment on grounds of religion within the meaning of Article 2(2)(b) of Directive 2000/78/EC, resulting from an internal rule of a private undertaking, be justifiable only if, according to that rule, it is prohibited to wear any visible sign of religious, political or other philosophical beliefs, and not only such signs as are prominent and large-scale?
If Question 1 is answered in the negative:
Is Article 2(2)(b) of Directive 2000/78/EC to be interpreted as meaning that the rights derived from Article 10 of the Charter of Fundamental Rights of the European Union and from Article 9 of the European Convention for the Protection of Human Rights and Fundamental Freedoms may be taken into account in the examination of whether established indirect unequal treatment on grounds of religion is justifiable on the basis of an internal rule of a private undertaking which prohibits the wearing of prominent, large-scale signs of religious, political or other philosophical beliefs?
Is Article 2(2)(b) of Directive 2000/78/EC to be interpreted as meaning that national rules of constitutional status which protect freedom of religion may be taken into account as more favourable provisions within the meaning of Article 8(1) of Directive 2000/78/EC in the examination of whether established indirect unequal treatment on grounds of religion is justifiable on the basis of an internal rule of a private undertaking which prohibits the wearing of prominent, large-scale signs of religious, political or other philosophical beliefs?
If Questions 2(a) and 2(b) are answered in the negative: In the examination of an instruction based on an internal rule of a private undertaking which prohibits the wearing of prominent, large-scale signs of religious, political or other philosophical beliefs, must national rules of constitutional status which protect freedom of religion be set aside because of primary EU law, even if primary EU law, such as, for example, Article 16 of the Charter of Fundamental Rights, recognises national laws and practices?