Isn't 'cancel culture' vastly overstated? We hear so much about it because media personalities (mainstream through to podcasters) are the targets of it, so they're naturally going over-value the threat of it.
For examples of people getting cut off or ignored by their families and friends purely based on politics, look up the "WalkAway" group, there are hundreds of emotional video monologues by regular people. Fair warning - it is a partisan FB group, but a majority of the uploads specifically name the cancel culture they experienced as a contributing factor to why they changed their political beliefs.
Cancel culture affects ordinary people's social lives and career just as much, perhaps more so than media figures who can rely on the sympathy of like-minded crowds to bounce back.
Of course, instead of throwing a book at you, here's his 1-hour podcast interview with Sam Harris about the topic: https://www.youtube.com/watch?v=zaniQUlqzgE
Though the book (nor interview) is just focused on call-out culture. But it does talk about some interesting aspects of it, like how calling out is a way to win prestige.