Urea-formaldehyde "plastic resin" adhesives are fine when properly used. On the other hand, epoxy resin adhesives are also fine when properly used (unless one suffers from an allergy to the hardener). Boats falling apart and epoxy "glue" failing are symptoms of improperly used epoxy. Many fine epoxy laminated boats are sailing after 40 years, still in fine condition. A few failures can highlight the seriousness of learning to follow directions, particularly when building something that people's lives may depend on proper work. Improperly used urea formaldehyde adhesives can be misused and fail too. They are as much dependent on proper work as any other adhesive.
I have been using epoxy resins for boat building and repairs for 30 or so years and I have never had a failure of an adhesive bond or lamination. Good guidance is available on the West Systems web site, with a very substantial amount of information. See
https://www.westsystem.com/instruction-2/