See, the thing about Camus is that, he's not a Pretending to be Emotionless Hypocritical Thing that doesn't want people to feel anything ever and not be connected to those around them. There are actually a handful of canon examples that he finds merit in camaraderie and emotions that fuel people's will to fight and dedicate themselves to humanity and Athena.
He is, however, a firm believer of never letting his emotions get in the way of the decision he makes as a Saint. For him, letting your emotions dictate what you do and act, to the point of causing more conflict and strife is Bad. And he's real for that because he also doesn't really extend this mindset to anyone but his fellow saints, and even then, it's only when they're truly lashing Out. There are reasons he believes this — he is an Aquarius saint after all and they're SUPPOSED to be calm, cool and rational — and there are good reasons he's VERY strict about it with Hyoga.
The problem I keep seeing in this fandom is that his attitude as a Saint keeps getting translated as = you should never hold attachments with people or things and if you do you're Wrong, and that's just, not the case, at all? He just doesn't condone those attachments standing in the way of how you should act like a Saint, which includes people's pasts (because Saints are supposed to be warriors who protect the present and ensure the survival of the future for the next generation). You cannot let your emotions and attachments take your sight away from the bigger picture — ensuring that humanity survives.
Like, of course he cares about Hyoga. That's Practically His Son, but does he let that stop being from doing what he thinks is right? No. And yeah, you can argue that he was wrong to do so, but not on the fucking principle of what he believes in, because he WAS following what he preached! It just wasn't the correct decision in hindsight because there was no way for him (at that moment) to know that Hyoga would actually be able to awaken the 7th sense during the Sanctuary arc and survive a brutal death during then. There are also multiple examples of Camus being able to abandon, betray and go through extreme painful lengths to do what he thinks is right (and I will say it's BECAUSE he loves the world and Athena and his friends [1 Surt, I guess] that he does this), that's him acting and being true to what he preaches! And his whole "Hyoga you will remain here forever untouched in the freezing coffin" + the implication that he'll visit and he's crying in that moment it's so.... I don't know how to tell you this, but that's Literally His Son that he thought he killed, it's actually quite normal to tear up and cry and promise to visit someone's literal grave if they're that close to you.
There's a key difference between Hyoga's and Camus's situation here, though. Camus has proven time and time again that he will not let his past attachments stop him from what he believes a true Aquarius Saint needs to act like and he's not endangering anyone by the act of repeated obsession (he's not capable of that obsession anyway) and visits, and his convictions hold true when he's forced to betray Athena. Which ultimately contributed to all of the Hades saga happening the way it did.
Tldr: he is not a cold heartless bastard who thinks human connection is a farce while also having emotions and connections himself. Camus is actually a Big friendship is magic (and being a saint of Athena in a very emotional and dedicated way) believer if you look at him properly, but of course, media literacy where when the blorbo they like better is pitted against you, I guess.
