We can't say the truth/opinion about certain topics because it will offend certain people and the mob will exert its power to take something from you by threatening you or an employer.
Could it be considered blackmail to get someone fired from their job for outing something they said to an employer?
Blackmail as a crime requires the blackmailer trying to get money or something of value out of their victim to prevent them from exposing some sensitive information. Would be interesting if someone could argue the outcome of cancelling someone fell within that definition.
Could it be considered blackmail to get someone fired from their job for outing something they said to an employer?