One of my all time favorite labor books is Geoghegan's WHICH SIDE ARE YOU ON? which is practically non-stop criticism of unions. The difference is that it's written from sympathy with those struggling to make unions survive, not the predominantly hostility that you and Fitch who you quote repeatedly express towards most of those involved in the union movement.
Most people in the union movement spend most of their time critiquing what unions are doing and how to improve them, but I rarely hear anything particularly useful in the latter regard on this list. Partly because folks seem so damn ignorant of the legal restraints unions operate under.
Nathan Newman