"Supporters" can often fall into one of two camps. Those who just refuse to consider anything other than "it can't possibly true", who ignore the evidence or who just refuse to think about it deeply, because they are biased or in denial in some way (superfan, or family).
And in the other camp are those who who have something to gain, or lose, by sticking by the accused in some way. Perhaps the accused person actually has something on those individuals that could spell trouble for them, hence they give their support publicly to keep themselves out of hot water. Perhaps the person apparently supporting them is only doing it under duress.
What I would want anyone to ask themselves, is why did none of MJ's advisors, PAs, managers, and closest associates, who were paid to make sure he stayed out of trouble and continued being successful , why did none of them advise him all along that associating with young boys (and it's noticeable that it's not children of both genders, it's mainly boys) in the way that he did, having them to stay overnight in his room, separating them from their parents, was not a good idea. WHY did they not tell him, repeatedly, not to do it? Why did they not advise him to seek psychological help for the emotional development issues that he clearly had?
Why was everyone who worked at Neverland, and around MJ, including himself, not made to do any safeguarding training, when so many kids were coming and going, running around freely, not always under the eye of their parents? Why did MJ himself not insist on it, so that he could at least say that all his employees had been trained/vetted, and had full safeguarding training, including himself, and there were safe to be supervising children without chaperones.
If he'd had decent safeguarding/child protection awareness he would have known that being alone around a child so often and sleeping in the same bed is a total no-no for an adult who is not their parent, and not doing so protects both the child and the adult (in case of false allegations). Perhaps he wouldn't have done it. But maybe he was fully aware that if he HAD done any kind of safeguarding training, that would immediately exclude any potential for claiming that his behaviour was all part of this innocent, naiive childlike persona he displayed. He then wouldn't be able to claim that he didn't realise he shouldn't be doing it.