Sentence:  The principle of collective bargaining has been a basic point of dispute; it infringes, as Perlman pointed out, the privileges associated with private ownership and management of property. ... These so-called charters were simply a license given to shady elements to <WSD>privateer</WSD> against the strong and growing unions. 
Meaning of the word marked with <WSD> tags:  To advocate or benefit from privatization of government services.