Unions were a communist invention. And, they had their place in protecting workers from dangerous situations. But that protection has been institutionalized. No longer necessary for the workers, they have morphed into communist political organizations.
“Unions were a communist invention.”
Unions predate communism.
“The formation of the Federal Society of Journeymen Cordwainers (shoemakers) in Philadelphia in 1794 marks the beginning of sustained trade union organization among American workers.”
https://www.history.com/topics/19th-century/labor
“Skilled workers in Britain began organising themselves into trade unions in the 17th century”
“Particularly after the formation of the Independent Labour Party (ILP) in 1893, the trade union movement developed a close relationship with the political left.”
http://www.nationalarchives.gov.uk/pathways/citizenship/struggle_democracy/trade_unionism.htm