Your argument seems to rely on the assumption that the employees have much of a choice. In theory there's supposed to be a free labor market, but in practice em

Your argument seems to rely on the assumption that the employees have much of a choice. In theory there's supposed to be a free labor market, but in practice employers hold a much stronger hand than employees. It's hard for employees to vote with their feet when facing the threat of unemployment. Thus their "engaging in those activities" can not exactly be counted as any kind of approval. Some solutions for this could be stronger unions protecting worker's rights, stronger punishments against employers who take advantage of the weak bargaining position of workers, or providing basic income to tip the balance of power a bit more in the worker's favour.