I would agree that Ayers is presumably no longer violent, such behavior tends to pass with age. But, I see no evidence to suggest that Obama is no longer a Marxist. Only a few ever turn from their Communist core beliefs though they may wear a different colored coat as disguise. Obama will be a Marxist until the day he dies.
Ayers is violent- and a master manipulator (think Charlie Manson but without obvious insanity and a PhD). He thinks (and always thought) he is too smart to get his own hands dirty so he manipulates others into making and planting the bombs and planning the robberies. In addition to targeted citizens, some of his acolytes died doing his dirty work, including his girlfriend prior to Bernadine. IN fact Bernadine another “Squeeky Fromme” sociopath was among his most zealous acolytes and went to jail for refusing to rat out the gang that killed 3 people in the Brinks robbery, even though Bernadine stole the identity that was used to rent the getaway car.
This sociopathic behavior does not go away with age. Especially when Ayers/Dohrn have manipulated themselves into being anti-establishment heroes among left wing academics and wealthy red diaper trust fund babies and their connection to grants from wealthy foundations like Annenberg for Ayers’ “education” programs