one argument in favor of labor unions is that...

# Brief Explanations: Labor unions often negotiate with employers on behalf of workers for better job - related terms. One of the key benefits they can secure is job security through collective bargaining agreements, seniority systems, and protection against unfair dismissals. They don't necessarily create many new jobs directly, and they mainly represent workers rather than supporting owners. Also, they don't focus on eliminating unqualified workers. # Answer: give workers job security.