Theories I have stated before ( over the summer & recently) and I am going to state them again….
1/ The lost boys are more like the boys in LORD OF THE FLIES then the PETER PAN SERIES.
2/ JUST as Cora could not take EMMA’s heart …. Peter Pan will not be able to take HENRY’S heart from him. LOVE = STRENGTH and Henry is loved by many who are willing to sacrifice for him… EMMA, REGINA, NEAL, SNOW AND CHARMING, even RUMPLE and the entire town of STORYBROOKE.