I've had some more time to think about all of this and to observe what the OP and his boyfriend have done in reaction to my post yesterday. So, here's what we have so far. A few things have been clarified by their impulsive and panicked response, which is exactly what I wanted to happen.
Bird Boy is a "22 year old" with an "Italian Dad" and "Irish Mother". He described himself as having been a "fedora atheist" all through high school, but now is "frightened" of the possibility of there being no god, thinks it is "wholly unfilfilling":
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He links to a furry website in his channel description, and uses a profile picture of a "gay burd". He has been subscribed, the only subscriber, for 11 years, to a youtube channel with one video. The channel is called "3wackokids". That sole video has one comment, posted by "Pladimir Vutin". That person describes himself as "Bri'ish" and uploaded this, so we have his voice and can confirm he is a very poorly adjusted man and is guaranteed to be very extremely on the spectrum:
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Some choice observations -
"When I hear you teenagers singing, I want to gouge my ears out with a fucking spoon":
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"I would implore you to get some speech therapy" he says, while stuttering and stammering:
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*Bangs on his desk for 30 seconds*:
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"Katy Perry.. complete talentless whore. Justin Bieber.. that.. that baby faced Canadian who can't sing.."
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"and Nicki Minaj.. OOH.. I have no words for that.. WOMAN.. if you can even call that.. that human being a woman.. if you can even call it a human being.. she is just so.. BAD.. at singing"
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Spends 10 seconds just making weird noises. It's one of the cringiest things I've ever heard.
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"Taste is Nirvana.. it's Linkin Park.. it's Metallica.."
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He pronounces Adele like "A Deal".
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Affects a weird voice for way too long, very cringe.
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I can't even go any further. There's 11 whole minutes of this and I can't do any more. There's a lot of stammering and slurring throughout. Also he becomes very out of breath from the exasperated raging and ranting at about the 7 minute mark. It's actually really sad to listen to. It's no wonder he made it unlisted after my post yesterday.
And that's the guy that had OP in his featured channels (until he changed it yesterday), and that guy is the only commenter on an 11 year old video from a channel with one subscriber that Bird Boy was the sole subscriber of.
What we have on our hands is very likely situation of 3 very unsuccessful and low functioning insecure beta male adults spergs, the smelliest rejects of their entire school year, trying to team up to achieve something in their lives for once. It's backfiring hard. Since I have started to observe the Sperg Trio in action, Pladimir has removed Jojo from his featured channels list. As I mentioned, Pladimir has also changed the video of him revealing his extremely high sperg level to be unlisted, so on some level he knows what he is and is ashamed of himself. I already had clicked on the video and observed his sperg level a few days ago when it was public, and was able to find the link again by searching browser history for "rant". You all can watch the video and confirm my observations. It's probably very amusing and it's exactly what I'd come to kiwifarms to see.
Pladimir Vutin might be Dog in this thread. Really could be. Dog has been sperging hard in this thread about Scottish people, and describes interacting with "Scots" like it's a regular thing, so it's pretty much a given that he's English. Dog also has been on this forum for more than a year but a remarkably big chunk of all of his posts, ever, are on here. His sperging very conspicuously matches the very forced sperging style of Pladimir Vutin in his sperging video. Pladimir Vutin also has an irrational hatred of pop artists like Katy Perry and Justin Bieber, and cites bands like "Metallica" as being "true art". So he was one of the spergy metal kids in high school, and he found the self-confessed "fedora atheist" who is now an observed furry. This further confirms my hypothesis of 3 smelly high school rejects that have stuck together for 11 years. Based on Pladimir Vutin's obvious Englishness, it looks like Bird Boy is English too. So he is English, is 22 years old, has an Italian dad, and has an Irish mother. There is a very real possibility that Jojo and Bird are the same person, that Bird Boy is the OP. It could just be two spergs, but that would make me wonder who the third of the "3wackokids" was. The final sperg of the holy trinity of spergs. Maybe he dropped off after high school. I'm still considering the possibilities and adjusting to all new findings. There will be more updates to come.