One of the first things that "progressive" politicians should do if they take power is require large companies to disclose the exact number of firings before people are notified.
"Even if an employer does not have a collective agreement, they must negotiate major changes to working and employment conditions of employees who are members of a trade union as if the employer had a collective agreement."
Negotiations include getting the lists of positions that will be terminated, number of employees affected, new positions that may be opened during a reorganization, etc.