Most of this is inaccurate. The history of unions is long and complex. Although there has been tension historically between craft unionism and industrial union

Most of this is inaccurate. The history of unions is long and complex. Although there has been tension historically between craft unionism and industrial unionism (the original term for lower skilled work), that was mostly in the pre-war period and not really related to the purpose of unions. No one is forced into paying union dues now anymore than someone is forced to take any particular job. Workers negotiate a contract with their employer that includes a commitment to include all employees as part of the union. It's just a contract.