Answer:
Built of metal or wood to divide. It will make us good neighbors, if you stay on your side. What is it?
What is used by man, tossed by trees, everywhere but unseen?
Up on high I wave away but not a word can I say.
Though I should be unique, you've made most of us the same. I would be stronger, if my characters were stranger.
I'm the source of all emotion, but I'm caged in a white prison.
This food is a tortilla filled with cheese and sometimes chicken before being heated or cooked.