Ok, I can't speak for all the accusations against Michael Jackson, but at least 2 of them were blatantly false.
Jordan Chandler's dad wanted MJ to fund his movie and when MJ refused, he accused MJ of molesting Jordan.
The other one is the Hispanic woman who told wild stories reminiscent of the kids in the McMartin (faux) trial. Underground tunnels to Mexico, using hot air balloons to cross the border and back.
I remember some things about that trial now. The dad was this dentist who eventually committed suicide. The Hispanic woman was a lunatic. HOWEVER.. There is something fishy about that case. Apparently Jackson had convinced the boy he had terminal cancer and had to stay at Neverland.. when in fact he did not have terminal cancer. I personally don't think Jackson fucked any of them, but I do believe he showered nude with them, and looked at porn together, and probably wanked off together. That is pretty much what Sandusky did, and they put him away for the rest of his life.