[dathinab]

still not legitimate, because then any laying of on union members/leaders could be legitimized that way

in any country which properly enforces labor protection law laying of any union leaders without the agreement of the union is extremely hard and requires missteps of the members like e.g. stealing. Or really unusual situations like you lay of half of the members and over half of the members have young children (or e.g. are disabled, project leaders etc.) but non of the union members have any of that. The likelihood of which is basically 0 in practice.