Mid/rear Seats Assembly problems of the 2017 Jeep Wrangler

The entire body of the Jeep has rust corrosion inside and out the gears always grind especially in reverse seatbelts are not working in rear seats dealship says they can't help me fix the issue. They did a leak test and found several leaks throughout the Jeep. I currently have no carpet due to the off and on leak issues. And the smell is so bad I can't drive the Jeep. I have a three year old grandson and I'm scared to take a trip with him. I feel this particular Jeep is unsafe in several ways.

Gears pop out while in reverse and grind when in reverse my Jeep is covered in rust and sounds like it's about to fall apart the dealership actually sold me a brand new rusty Jeep that they refused to replace even Chrysler is giving me a hard time. I had several leaks around the doors window and the top and still they refuse as well as me and my grandson have cut out hands on sharp edges on all the seats and two of the rear seat the seat belts don't work.