"Stochastic terrorism" is the concept that a media campaign with large enough reach that vilifies and dehumanizes a target group will cause a rise in attacks against them, without any central planning who is attacking whom when, but rather because it pushes random (hence "stochastic") at-risk people to commit random attacks.

A good and clear explanation. God Damn the Pusherman. Would you say that this is what happened on January 6th?

A perpetrator of stochastic terrorism. In this context, a lone wolf who is radicalized online.