PLSSS HELP ME WITH DIS!!

GUYSS!!!!! I need ANYONE to help me with my brother's skibidi toilet obsession!! ;-;

These days my brother has been watching skibidi shiz and became OBSESSED!! he is a frickin 5 year old.. you heard me... 5 YEAR OLD CHILD and he has now an obsession with it! now SOME ppl are gonna say.. "whattt we ALL were obsessed with smthn when we were little -_- its alr if i doesnt hur-" YESSS??? but it DOES hurt them! I myself was obsessed (still am) with fnaf and all crazy stuff, but this aint no normal obsession. my brother and many children I heard from that started watching skibidi toilet became frickin SCARED OF USING THE BATHROOMMMM!!!!! Ok now that i wrote it kinda seems funny tho ;-; but it still is a problem. So why im writing is that i want someone to tell me how to get my brother to STOP watching it.. I have tried do other stuff like playing ball or any NORMAL thing, I have tried to make him watch ACTUAL good cartoons and sh-! it kinda made him better as now he plays more often and actually likes the cartoons i show him, but he would STILL prefers watching skibidi toilet instead , ANY TIPS???????????????