"A quote directly from you in the thread you made for the upgrade contradicting what you just said"
Except it ABSOLUTELY doesn't and you just took it and pasted here out of context, that comment of mine was simply to show that in the ARMSTRONG what was COMMONLY USED TO SHOW THAT RAIDEN WAS RM wasn't actually that, but of course that is only part of why he didn't go RM, i went in-depth about them in the very crt. Raiden's eye ALWAYS glows red when he goes ripper mode but it doesn't ONLY glow when he goes rm. You literally just took a comment of mine that has nothing to do with anything in this post and pasted here without considering the fact that I also said "The reason for that is in the "glowing eye" scene, where Raiden comes to terms with his violent side and embraces it" in the same thread.
"And just because technology improves, that doesn't mean it's more durable"
Except it absolutely does, especially in the case of a meterial such as CNT whose WHOLE POINT is being mechanically strong
"For all we know, the reason CNT is so widely used is because of its chemical stability or how well it does under heat in comparison to things like steel and that was where the primary focus was"
Straight up false, we know EXACTLY why CNT is used in MGR, we are told by Dok himself, and i quote: "CNTs have assorted properties, each with the potential to drive vast leaps in industrial technology. Consider, for example, that their conducting properties and resistance to strong currents far outclass copper. They have great mechanical strength and can be shaped into incredibly thin form factors. All of which can directly contribute to improving integrated circuits. Furthermore, the atomic links in sp2 carbon is the strongest of all types of atoms. Its tensile strength is greater than even diamond...". CNT is used mainly because it's strong and flexible.
"While Metal Gear's are meant to be deterrent like Nukes, that doesn't automatically mean they're material has to be super durable either"
Actually yes, it goes without saying that a weapon which is supposed to prevent war from ever happening due to just how advanced and lethal it is should also be as durable as technology allows it to be, just like nukes grew EXPONENTIALLY in power due to their importance as a deterrent and scientific progress.
"Plus, compromises tend to be made for things like weapons and vehicles all the time, so its also logical to assume that they might've went with something below the best"
You accuse me of making assumptions and then one of your arguments is literally just "yeah they probably just didn't make it as strong as they could, just 'cause". Nothing in the game even comes close to suggesting something like this happened, it's a full blown assumption.