She endorsed Romney over the other Republican candidates during the primary. That’s like choosing a turd when tootsie rolls are available. She dates liberal Democrats. That doesn’t exactly speak well for trump.
She herself has very frequently been the victim of the brown-shirt tactics of the left-wing thugs when she's gone on the speaking circuit.
As for why Freepers would not blame the thugs/protesters (who went there to shutdown the rally) for the events of last night, the most generous reason I can come up with temporary impaired reasoning due Trump derangement syndrome. Otherwise, it can only be little regard for Constitution rights and or a lack of balls to defend those rights in the face of left-wing brown-shirt tactic and their media propaganda cover.