Answer to "My kindle fire screen is locked and won't rotate."There is a rotate screen or lock screen option in settings. I promise it will work.
Answer to "Why does not work the touchscreen?"Swipe down from the top with two fingers or try tapping twice quickly center screen. Do anything you can to get to accessibility options. Make sure accessibility switches all are off. This happened to me too, its a setting i somehow hit . Cant remember which, so turn it off. Also if you lose touch function and there is a thin green or yellow colored "frame" surrounding the window you see, it is definitely this problem!
Answer to "Charging port possibly bent or broken, how can it be fixed? Where?"Not port, you have a bent charger. I would bet my life on it. Buy two new ones, it wont be long til it happens again.