I'd write something like (entirely based on the arguments which are provided):
The World Assembly,
Recognising that quarantines are an important tool to prevent the spread of epidemics and the loss of life associated with them,
Concerned that while 385 GA deals with many of these problems, it does not cover some unanswered issues on medical ethics and that future legislation on that front is blocked by 385 GA, making it impossible to solve those issues,
Believing that 385 GA does not provide an effective treatment of the issues and that some of its mandates would prevent nations from taking extreme measures which would save many lives,
Insert other reasons for repeal here.
Hoping to repeal and replace this resolution with one which answers these questions and deals with many of the issues pointed out by recent discussions on the matter, hereby,
Repeals 385 GA 'Quarantine Regulation'.