1st line Kaguya is a joke...
Kaguya is no joke. The sage called her strongest of all. She an individual person and has more chakra than the Juubi itself. Naruto and Sasuke couldn't do shet yet but have contested Madara. She just shifted the whole battlefield in an instant.
2nd. "MAdara will fodderize her".. Get real
3rd. Naruto and Sasukes current abilities don't hold a candle to her. Sasuke has a chance but Naruto meh
4th. How Kishi treats females. Lel. He automatically made a female the strongest in his manga. Seems like he's compensating. Ofc she'll be defeated and Im sure Madara will make a return but as a good guy.
5th. I really like the idea of Kaguya being from outer space or something along those lines. It gives the manga more depth imo, the main story is still there it's just expanding.