Yes I believe it. Why would the men who detailed how he abused them as children not be believed? Why would the many witnessed elements of his inappropriate lifestyle - being constantly acconpanied by 'favourite' young boy children away from their parents, grooming parents, grooming good-looking boys, being alone in his mansion and in his bed with multiple young boys, paying off boys and their parents, sworn testimony of said boys etc etc.
Why would he, a grown man, sexually mature, with no intellectual incapacity, be magically 'childlike', harmless and of no risk whatsoever to the unrelated boys alone with him in his bed?
Deluded fans who don't want this to be true will always try to explain this stuff away, no matter how they have to twist and turn to do so. Favourites are that the accusers are all grifters after his money and poor Mikey was too sweet and naive to see them coming, and the repeated assertion that Jackson wasn't convicted at trial. If the many, many people who relied on Jackson's money, influence and favour had not stayed quiet, there would have been a much better chance of that. Jimmy Savile was never even brought to court despite being investigated several times: his national profile, famous friends and good works versus the say-so of poor kids and nobodies.
I had a conversation with someone I know recently who was saying how much she and her family had enjoyed the new biopic. She thinks the allegations are 'all lies'. This seems to be because she loves the music and his persona and doesn't want to have to change the way she thinks about him, but also because she's often oppositional to authority and sees Jackson as a kind of underdog. She's entirely prepared to think the men who were abused by Jackson as boys would maliciously make it up to make him look bad.
The way Jackson was indulged, as an A list celebrity and fabulously wealthy man is fully illustrated by his being allowed to acquire - as a single man, constantly at work - three infant children with no meaningful oversight.
In plain sight.