I admire anyone who is super passionate about a game or franchise (or anything really), but when you stan them (or it) too hard to the point to where you’re incapable of having rational opinions or arguments (or being able to engage with either), and are unable to criticize them whatsoever, and think they can do no wrong, that goes beyond passion into an unhealthy obsession and delusion
Look, isn't society always talking about how people "ignore the signs" and "don't speak up" enough when red flags are all over the place?
REAL TALK, this dude is clearly and obviously mentally unwell with a deep parasocial attachment to fandoms. The comparison to Chrischan is genuine because the behavior is almost identical. Even the parroting of things back at people is clearly mirroring. Every slight or criticism is taken as a personal attack against him and any, even obvious, nuance in someone's opinion that involves criticism is taken as absolute negativity.
This isn't differences of opinion...this is people with differences of opinion conversing with someone that is probably doing damage to their own mental state due to a genuine inability to conceptualize outside opinions.
Delusion, as you put it, is entirely accurate. This is delusional, obsessive behavior. I was not joking when I said this is how Gamestop employees get maced. The comparison is apt. Dude needs help and probably needs to be offline. Honestly, the only thing keeping him from being a full blown lolcow spiraling into total self-destructive insanity is that he doesn't have a larger platform that's been noticed by the sort of people that feed lolcows. All the signs are there.
Either what he says is not serious and is a troll (unlikely)...or he means it and it's obvious this is the behavior of someone that needs supervision in their life.