Those pictures are horrible
Are you the only one that drives the car, looks like somebody hit/ drug it across something... Go ahead and ask me how I know, you should have seen the bottom of my truck
I can't really tell what exactly that is so I'm not sure how important it is or how much it matters that it is mangled. Your best bet would be to take it to a body shop or the dealer if your not sure.
As for the rust it's not a big deal, it's only surface rust. You should be able to sand it off pretty easily then you can paint it, they also make paints that you can just spray over rust that would probably work fine. There are also different kinds of spray to prevent rust, fluid film is one that is supposed to be pretty good.
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"At no point during your rambling, incoherent response did you ever come close to anything that could be considered a rational thought. We are all now dumber for having listened to it. I award you no points, and may god have mercy on your soul."