What are the odds of an autofilled bot lane 7 times in a row

Like when bot lane is auto filled you just lose, the damage isn't there in teamfights and they just split push until we lose, like its so frustrating when you carry as a jungler, gank all the time, smash the enemy jungler, get top and mid both fed, and then lose because bot lane either feeds or is down so much cs they do no damage