Gackt said in his 2018 platinum photobook that the other members were already in a weired relationship when he just joined the band, it's on the verge of disbanding so it's clearly not his fault to break up all the things.
And it was him who was trying to negotiating and putting things up together. Although he felt weired but it was just a job so he withstood it.
So it's all other members' fault.
Among all things Gackt said, I think there are at least some truth in it: He said all MM members are very unsociable and laid-back person. He wondered who was going to take the role to communicate with outside after he left. And when he was in the band he had to urge everyone to do their job.
However now we know Gackt is a very strict overman about his job, maybe they didnt know it back in 20 years and would blame him for it
