Nothing proven. Much documentary about it though.

There's a vine/TikTok dude that made a short about it somewhat recently in a shallow and humorous fashion.
Basically, the Jackson dad was an asshole who beat his kids. Michael being the most successful one got the worst of it, as per the documentary. Not sure if his brothers covered him and how often.
He didn't have a childhood, he had beatings, training and concerts.
His soft-spoken voice was beaten into him, only allowed to use his full voice for singing.
His Neverland was built for that which he never had and he tried to give that to other children he felt were like him.
Whether something happened is only known by the the people involved, but odds are that unless Michael himself was molested as a child, it's far more likely that he was deeply traumatized, cried himself to sleep and had recurring night terrors.

I'll repeat, only the people involved know what happened and they're not talking.

He was acquitted of criminal charges while still alive from NPR. People have tried to sue his estate over alleged inappropriate behavior since his death but nothing made it to court yet. So legally no, he never molested any minors. But the fact that there were multiple allegations is concerning.

Grew up in a town near Neverland ranch in the 90s, he hosted the local little league champions team to a party there. I'm pretty sure a classmate of mine went there once. Only had nice things to say about it, but even then there were jokes and rumors.

On one hand I can see people scapegoating a successful black man, from multiple angles there may also be feelings of betrayal from the black community. On the other hand, I was also up the road from Oprah, and I never heard anything about parties for groups of minors that she hosted.

Where there's smoke there probably fire, but racists and radicals are good at hiding smoke machines.

From what I've read they almost certainly completely wrong. This is a blog site that lays out the timeline and evidence and all the shenanigans. It's pretty horrible reading this. There is zero evidence and all the witnesses contradicted themselves or outright lied. A jury found him not guilty. But it was a cottage industry. It's about greed and media malfeasance and racism and maybe just hatred of freaks.

https://themichaeljacksonallegationsblog.wordpress.com/

Nothing ever proven. He was weird, he had issues with boundaries and felt like a child himself. He never hid the fact that he slept in the same bed with these children and thought it’s just a very normal thing (he mentioned it in an interview that was also shown in Leaving Neverland I think). Maybe he did some things with them that he also thought was normal like, you know, children discovering themselves, playing doctor and stuff. Not good at all. But from his perspective kinda innocent games. Just a theory about his intent and no excuse of course. If anything happened anyways.

I was always a big fan of his music and general style and still am but I think it is possible some things happened behind the scenes because he was just a very broken person. And later I felt he had this “too good to be true” vibe to him.

There are also rumors he was gay and that fucked him up even more because he had to hide it (like pretty much everyone back then).

I remember hearing at the time that the family that ended up suing him had been sort of fishing for a celebrity to take their kids for a night so they could sue them?

so like, maybe it really did happen, I remember hearing the sentiment "he's guilty, but he got sued by the wrong family" because that particular family had been acting shady. that was why Jay Leno had to testify? I can't remember

lived through it.. way too much damaging info was released for him not to be wacked in the head... things he admitted to.