I just wonder why he doesn't inmediatly loving shatter upon hitting the wall
Here's my explanation: the Kool-aid people lived in Aiyel Zix and were always afraid of breaking into a million pieces, but when they fell into a war with the Honey Nut Cheerios they began running low on weaponry, and being capable of containing liquid, they decided to pour themselves full of milk which would make the Honey nut cheerios shrivel up and die and ran into them, rather than shattering upon hitting a Honey nut cheerio bunker they got a concussion and fell over with the milk spilling into the bunker, upon discovering the fact that they are simply immortal they won the war by running up to Honey Nut Cheerios and loving punching them to dust.
With this newfound power they began their slow congquest to take over the world, but Glassblowius their god, was displeased with their misuse of the immortality he had granted upon the Kool-aid people and made them mortal again.
Not a single Kool-aid person knew about what their god had done and went on with their day to day lives untill slowly Kool-aid people were dying everywhere glass shards covered the fields of Aiyel Zix, untill only 2 Kool-aid people were left: Kool-aid Man and Kool-aid Woman, they lived their last day in extreme fear they were afraid of reproducing because Kool-aid Man's richard might shatter and when Kool-aid Woman couldn't take it anymore she did a backflip off a building and crashed into the ground.
After witnessing the horrible display Glassblowius spoke to Kool-aid Man, he spoke:"I shall grant you infinite amounts of Kool-aid that can never go bad or be affected by anything but you must use this Kool-aid to aid the children of earth in their thirst, i shall now send you to earth and grant you your immortality back but if i ever see you use it for bad i will forget you up."
And so Kool-aid Man lived in agony as an eternal slave to thirsty little kids.
I hope this answered your question