How bad do these veneers look. Should I have them redone? (photos)

Without all the information it's difficult to give an exact answer. However, it sounds as if the dentist was very quick to do porcelain veneers without doing the required tests, such as full mouth X-rays, periodontal exam, and a visit to a root canal specialist for an opinion about resorption.  If you feel rushed , or "sold" by a dentist who doesn't consider all options, and present them to you, you are in the wrong place.Sounds as if your dentist lacked experience, in a somewhat more complicated case than just a space and someone needing veneers. Your bite is not stable, and if not recognized before treatment, movement will occur.  Find a few other trusted competent cosmetic dentists for their opinions.

I understand your frustration. I would suggest visiting with your dentist. Share your concerns. If you do decide to replace the current restorations I would suggest looking at them closely before the are cemented or bonded. It is easier to make changes before they are bonded.