Sorry for your troubles. Jaycos have a better reputation than most, and a longer warranty.
Unlike what seems to be most on this forum. I don't believe your experience is normal. I have bought 2 new TTs, and one new pup. I didn't have near the problems with all combined that you are describing. My pup never went back to the dealer. I did replace a side panel that the seam came loose on. My first TT only went back once for a recall, and my current TT has been back once, for very minor issues, like a loose cushion seam, and loose bolts on the AC. All repaired in short order, But not of course at Camping World.
It appears to me you have got a lemon. The delamination alone is enough to warrant a new unit replaced at Jayco's expense. Were I you. I would give them a call, and explain you want it replaced. NO TT should have that many problems. In truth, it sounds like it was built by management while the workers were on strike.
Good luck.