Hikawa's Reason is the most consistent with his outlook and stated goals but it's ultimately a world created by a sociopathic nihilist, that's a bad end
Isamu and Chiaki's Reasons are not born out of their outlooks, they are literally the expressions of the trauma they suffered in the Vortex World. Bad End.
TDE: you are literally condemning entire other worlds to eternal death so the forces of Hell can finally kill God, it might be very personally meaningful but that is still one hell of a Bad End
And the Freedom ending is just...'let's reset the clock and pretend none of this ever happened' and frankly there's a shitload of stuff that would need to be done to make that even remotely viable
honestly been thinking more that the plot has to do with depression and confusion about the future, mainly since we know so little about Nocturne's world and the problems Yuko has with it. The lack of a Steven also suggests events from 1 and 2 aren't even close to happening yet.
granted I still want to address the state of the world before that since I did it in my last video. I try to keep finding ways of hope, since Nocturne helped give me that hope in the first place. Hell, all SMT games do in their own way