Why can the toilets survive blunt force traumas with ease despite being a giant human head

This post marks the start of my consistency arc since I wanna post more of my thoughts and idea on this subreddit

Though the question is mainly rhetorical, any other ideas are accepted to. It always bugged me that the toilets just exist as a head without anywhere to keep their deformed human body, you could say the porcelain toilets themselves have a void that swallows the entire body leaving only the head but that’s boring. My theory is that the toilets’ heads are mushed together from all the flesh of the human body. Think about it, matter cannot just disappear and it seems that the entire human body is integral in creating a toilet so when they fully transform, where is the rest of their body? Simple, it’s been condensed into the head to create a denser and stronger skull and outer skin

It’s why their heads are proportionally bigger, all that extra mass being shoved into one head would cause it to become bigger. It’s why they can effortlessly destroy machines with a single headbutt without suffering concussions daily and also survive punches from said machines without being knocked out, all the flesh and bones of the original human body are now concentrated in the structure of the skull which makes it thicker and denser, allowing basic toilets to survive allat despite being a fleshy head

It would also explain why basic knives are so effective yet get shrugged off by multiple toilets. The skin itself didn’t change material, it’s strong enough to not be injured when headbutting stuff but not strong enough to survive a focused impact on one small area of the head via a knife. The knife stabs get shrugged off by toilets like g-toilet cause simply, his skull is so bloody thick and strong that the knife isn’t able to completely penetrate his head and injure his soft & squishy brain. Even as it’s being stabbed through the eye socket, his skull is tanking most of the impact by being extremely dense whereas his skin is just flesh and thus can be easily breached by a knife

Lastly, I believe this ties into the unique composition of the Astro Toilets and why they are able to survive so much punishment despite being as big as a regular sized toilet. It’s the rune on their forehead that abuses this fact to the maximum. Though I want to make a separate post discussing the potential effects of the rune, I suspect it supernaturally increases their durability via the increment in density of their structure but don’t take this last paragraph seriously cause I haven’t really thought of the potential ramifications of the rune