This is all part of the strategy to ensure most people don't care when the TP is officially labeled a terrorist group and mass arrests begin.
This kind of over-the-top expression has become commonplace on the Left, and its purpose is best understood not as incitement (although that day may come), but rather as a theatrical form of political coalition-building.
Progressives do not any longer allow for honest disagreement with their beliefs, policies or actions. Instead, they ascribe bad motives to others, where none exist.
Because their power depends upon the exploitation of group grievances, Progressives falsely accuse their adversaries of harboring hatred or ill intent toward these groups.
This strategy serves two important purposes: first, it consolidates political alliances with the target populations by reinforcing their collective sense of victimhood, and of solidarity with the Progressive movement.
Secondly, it puts the opposition instantly on the defensive, not only forced to deny culpability for fabricated wrongs, but placed in a position of having to do so as filtered through the voice of a hostile news media, almost fully in league with the Progressives.
Faced with this set of negative dynamics, my advice to conservatives in the GOP is the same as it has been for some time: call liars "liars" and don't stop calling them liars. Rail against the exploitation of groups by Progressives by explaining how they are being used for the acquisition of power and money.
When the lie is told person-to-person, you have a choice. You can tell them they are lying, and walk away. Or you can tell the Progressive: "if you lie about me again, you'd better be prepared to fight" (or words to that effect). Most often, they will back off (I've called people out more than once, but then, I studied martial arts and used to box). But be prepared to fight either way, preferably with iron words, because we haven't done anywhere near enough of that.