The takes on Chris being a sociopath could be true since Chris doesn't show concern for anyone real or imaginary like how he forced his "son" to be in his shitty unhealthy body because he couldn't attend a pony convention.
Fwiw: that's exceptionally common among the tumblrina trans, LARPing like it's real, the psuedo-religious "beliefs" in crystals, Tarot, play-pretend 'but is it really??' astrology and all that crowd. Including the psuedo new-age fake religion "all fictional worlds are real in another plane uwu!!!" All of it. Even calling him "his son." And the psuedo- multiple personalities, and having one "take over." And we already know he echoes what all other trans do wrt, "muh pronouns!!!"
So no. This doesn't indicate ANY schitzo-typical behavior, but rather, the continuation of his low social IQ and typical retard thing where they copy others to look "normal," but don't understand how to correctly apply it, because it's situational. People like Chris see "respect my pronouns," and can't get any sense of nuance out of it and think that + the other women telling him "I don't feel safe [with you, a creepy rapist]" as a magic spell where everyone bends over backwards to accommodate the threatened, and admonish the threatening.
Chris logic: I am a woman now because "everyone" told me that's how it works, and whenever I skeeve out women they say I don't feel safe and everyone helped them and yelled at me. So if **I** (a woman tm) say I don't feel safe, everyone will stop everything and do the same to fix the bad things and yell at the judge to white knight save me!!!
He may think the merge is real, but that's sadly still part of the ongoing trans stuff wannabe cult goddess, and it's immaterial. You don't get sent to institutions just for saying "demons told me to," (trolls, demons, same thing for this purpose) or "I'm a goddess, your Earthly laws are antiquated and don't apply to me" - that didn't work for Jesus, it won't work for you. Being insane =\= legally culpable. You're still liable if it was premeditated (see book!), and avoidable. "I didn't know it was wrong," isn't an excuse, and is already disproven.
And his lawyer knows that and is going more towards, "his diminished capacity made it ripe for trolls [Bella especially] to make him unable to discern right from wrong." Less the trolls/voices/autism/crazy made him do it, and more, the immense pressure of trolling warped his moral compass (at minimum). This is for the idea that he could be fixed, not permanently locked away. Just needs a permanent yard wrangler to protect him from the trolls etc.
Schizophrenia is one of the "easier" to medicate, albeit depressing af, but because of the harm it often causes to oneself (taint piercing, burning the house down and the rest are truly mild compared to mutilation and running from rooftops to escape demons stuff others get up to) psychiatrists don't fuck around with it. If Chris had shown any symptoms of it for real, he'd have been on meds around puberty. He's not schizo. He might be FAS, XXY, some other borderline stuff, sure, plausible. But not schizophrenia. I look forward to him meeting a true schizo in prison or psych. Either way they will NOT put up with his shit. Even more if they became "friends." Chris' schtick wouldn't go over well. They can be pretty paranoid. So even if they believed Chris at first, it'd get shut down quickly the second they saw through his pathetic bullshit. And they might teach him true paranoia. "Copy this, bitch."