The magic fades into some sort of commentary on those with mental/personality disorders not being able to fit into society... The first half of the manga seemed to be actual fantasy, or at least some sort of metaphor in which actual fantasy is employed--whimsical and touching. The degeneration into the literal and realism was unnecessary and anticlimactic and boring/depressing.
No, I think he is actually correct. Of course this type of manga can be interpreted differently by every person, but the way I saw this is that there is no 'magic', this is a great psychological manga about growing up, but keeping something dear to yourself. It's about trust, integrity and so on and so forth
i didn't find the ending disappointing at all, and the dude doesnt exactly have a mental illness... he's already been cured to the point that it's easier just to say he is abnormal. IMO all that happened is that he developed a trauma due to the insane amount of pressure he was feeling. that trauma in turn made him decide to develop himself so he could spread relief and hope to people... basically spreading that sacrificing your happiness and free will just to get some money is a horrible choice.
not going to say he is a normal guy in any way, and its not exactly wonderful that he isnt bringing in any income(you can bring up pushing the guy over the bridge, but tbh i wouldnt have minded doing the same), but he definitely has his wits about him enough to not be considered dangerous... worst he has ever done was shove a girl that undermined his life goal(instilling wonder/happiness for the kids) immediately after he lost what was basically his closest friend... not exactly a pleasant reaction, but well within the means of a normal persons ability to deal with severe anger/confusion/depression/fear.
additionally the way it ended was great, the main chars got a TON of development, mostly finding a way to believe in something other than money(magic). this thing was absolutely beautiful imo, even got chills up my spine when i finished.
________________ Few favs Comedy: Kyou kara ore wa!!, Mx0, Angel Densetsu, Skip Beat, Ai Kora, The Devil King is Bored
Romance: Hana to Akuma, No bra, Shinigami Trilogy, kindan no koi de ikou, Usagi Drop, Threads of Time, Girl Friends
Most under rated: Kindan no koi de ikou, kyou kara ore wa!. m0r l83r... maybe >_>