The most accurate response regarding the impact of Reagan's firing of the air traffic controllers is:
Labor unions deteriorated as employers fired striking workers and replaced them.
When President Reagan fired over 11,000 air traffic controllers in 1981 who had gone on strike, it set a precedent that weakened labor unions in several industries. The event demonstrated that the government could side with employers against striking workers, leading to a decline in union power and influencing labor relations for years to come.