“Potatoes can also be turned into bread”
Every year it has been explained to you that Potato Bread is made with wheat flour. That is still regular chometz, you cannot say that it is muttar.
“Participant Coffee and Chocolate grow in trees, they do not grow anything close to a legume”
Your fantasy that legume is what defines something as kitniyos has been conclusively disproven more than once, why you keep harping that legume is the definition of kitniyos might be baffling to some.
(I am NOT saying that coffee or Chocolate are kitniyos, but your reason is not the reason)