In regards to the idea of him trying to sabotage us, it's probably crossed his mind whilst having angry conversations with his wife about the fans being cxnts, but in reality it would do his future managerial career no good. If he keeps us up, he has the 'I kept Villa up even though X Y Z' card to play for future jobs.
There hasn't been any personal abuse though, telling him to FXCK OFF is hardly personal, it's not like there have been any specific abuse towards him as a person, we just want him gone simple as - if the chants were 'could you please step down from your job mate?' it wouldn't really have the same effect would it.