my nibiru theory

i think the reason why nibiru cant be found though its so close to our planet is thousnads of years ago aliens cloaked the planet to maybe prevent an alien attack or something.and also now i believe nibiru is also an currently abandoned because since 5000 years ago its possibally in further than pluto or second :nibiru is a giant planet thats affecting the orbit of neptune and uranus and life only survives there because of A.atmosphere B.volcanic system the warms up the planet.or third:nibiru is a place somewhere on earth and since the sumerians are less civilized they couldnt tell the difference between a large city and planet