...That, and Dazai's too much like me. I can see myself in him and how I'd turn out like him. When I remember him doing something terrible, I can see myself doing the same thing if I let my vices get out of control.

Past Wesker - that's horrifying, those memories are far worse than anything I've ever had and I'm sorry for even comparing them. But he's less like me. And I'm sure you'd be better at dealing with Dazai's memories than I am, because he's less like you.

[In that way, they're all uniquely unsuited for dealing with their memories.]