After watching the documentary there's not a single doubt in my mind that Safechuck's and Robson's accounts are accurate, and whilst my heart breaks for them imagining how painful it must be to not be believed, I guess I can conceptually understand some fans still not being able to accept that their idol was a serial child abuser.
Barbara Streisand's comments aren't coming from a place of not being able to believe Jackson was an abuser, though - she's saying that she completely believes the accounts of him raping prepubescent children and it's 'sad' but he had to have his 'needs' met and his victims didn't die, so...
Of course there's an argument to be made in favour of not instantly writing off abusers as monsters and 'other' - it's important to try and understand the background of abusers and how the cycle of abuse can perpetuate. However in this case where the abuser was idolised beyond all measure for his entire life, used his power and wealth to groom, manipulate and silence his victims who've had to deal with not being believed for so long, and never faced any sort of justice, I think the time for sympathising with Jackson in any was is not now.