Let's say he went in.
What in there has a chance in hell of stopping him? Templar and Atheon would get one-shotted.
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Say he beats Templar but kills the Gorgons in the wrong order and dies. I honestly think he wouldn't get past Oracles because he's slow in the head. Need a minimum of four people to get to Atheon in the first place. If he did get Vault of Glass done, he goes to fight Crota and dies because he doesn't know he needs the sword to beat him. So it takes him three seasons of respawn ing once per year with DragonBalls before he "might" figure it out. Crota is immune to everything else while in his pocket dimension.
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Your issue is that you're using in-game physics. Player-requirements don't transfer into the actual canon.
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Ingame physics is what Destiny is, theirs no anime no comic book (that I know of) Look at ingame physics, look at how Goku starts every fight in every show and tell me he wouldn't die at Oracles because he doesn't know what they were for until it's too late.