Door handle - poor design / quality

My passanger door handle quit working and then my drivers side decides to give me fits when I'm trying to open it. I got tired of the passanger side not working so I pull the door panel off. The handle is a pita to get off, I even broke the handle in the process, but when I got it off, I noticed the plastic piece that pushes down on the locking thing is worn out and doesn't push the locking thing down enough to open the door. I wish Toyota or whoever the manafacture was would have put a piece of metal over the end of this plastic piece to keep the metal locking thing from rubbing away at the plastic piece on the handle.