As I understand the word "cancellation", it's the same as ancient ostracism, shunning, excommunication: nobody will work with you, buy from you. That's not violence.

"Doxxing" can be alarming, but only in the context where it might lead to violence, the victim must have concerns that there are left-wing attackers out there who will use the address, as "Gamergate" journalists were made to fear physical attack by multiple threats.

Letting a fascism-proponent's boss know that they have a fascism-proponent on the payroll is a sort of "doxxing", but not violent.