Well one merely has to look at Debbie's full name to realize why she would finally draw the line at something horrible that the leadership of her party is promoting. The sad thing about this is that ONLY her Party's support for the systematic rape, mutilations, and murder of Israeli citizens is enough for her to finally tell them 'No'.
Liberals/Progressives/leftists go for ANYTHING that harms this nation or inspires the world to want to puke on them. It was only when the collective leftist hatreds and insanity in regards to JEWS impinged on HER personal sensibilities did she finally 'discover' ethics and morality. This is typical of all leftists. They only finally squawk about their own side when a blatantly horrible policy or set of public actions negatively impacts them . . . personally.