People wear armors all the time to protect themselves both physically and mentally. From a football player who puts on protective gear to a politician who always sound like he's a good guy, an Achilles' heel can bring an end to their careers. Everyone are born with vulnerabilities like illnesses, allergies, disabilities etc and that is why our survival instincts push us to overcome our vulnerabilities and made us more thick-skinned to face the harsh reality out there.
A Gundam is always portrayed as a multipurpose war machine meant to survive in any environments and capable of taking multiple hits as it has a shell 10 times thicker than a warship. Which brings me to ponder:
What if the Gundam is stripped down to nothing? Even without beam sabers and built-in head vulcans?
As you can see here, my "Naked" Gundam concept is capable of changing into 3 types of combat gears meant for different purpose. Although the armors can increase the Gundam's combat capabilities and defenses, the raw deadliness actually comes from it's bare form-Naked form where the Gundam fully manifests its survival instinct and overcoming odds with its increased mobility and speed.
Like how Beowulf took out Grendel fist to fist and wearing nothing, I can see that one capable of overcoming his vulnerability but still unable to hold his testosterone for lust. No matter how powerful a weapon can be, the question still lies in the hands of those who wield it. Enjoy