The fact that the video isn't posted on his own channel is likely just because the video isn't a Second Thought video, which has a very specific format. Why should he post it there?
Yes their podcast is called "The Deprogram" and you can check it out here. They all make great content, go check them out! I really liked Yugopnik's video about the commodification of people's romantic lives for example. It was very interesting and thought provoking, a very "Žižekian" approach.
No you literally couldn't because you have nothing to say. If you have something of substance to say, say it. Don't hide between a long and obnoxious reaction video.
The rest of your post is just... ridiculous. You can argue the 4 points he raised to him if you want, but I'd rather choose not to engage with that nonsense since it's not my arguments.
You're not wrong about these arguments such as Russia being the aggressor and them being able to retreat. Nobody is disputing those facts. Preferably I would also like Russia to realize that they did wrong, surrender to Ukraine and pay them war reparations, but I live in the real world where that seems pretty unlikely. That's why I don't expect for such an outcome, not because I don't think it's the right thing to do. You can scream yourself hoarse about what Russia ought to do, but that's a factor we cannot control and we should approach the conflict with that in mind.
I do agree with him that we should have anti-war and your argument against that isn't an argument even. War is just a political event where workers are sent to kill other workers. Anti-war is the position of the worker movement and everybody who are social democrat or more left leaning agrees on that fact. Since you think otherwise, you must be a reactionary and are blowing some sort of dog whistle right now.
This is not WW2, this is a war where one country is a nuclear power, the largest nuclear power in the world in fact! The performance of the Russian army during the conflict doesn't really mean that they cannot launch nukes. Even if their nukes aren't fully effective, they can most likely still cause tremendous harm and the threat of the nuclear war isn't just the initial salvo but the retaliation and the threat of nuclear winter. For us who live in Europe, Russia's arsenal is a nasty and scary threat, but maybe you don't care because I assume you live in USA and feel more confident? I think that confidence is also misplaced, there's no defense against nuclear armageddon. If that happens, billions will die and suffer.