So, if any of your local religious leaders is a pedophile you lose your right to self determination? That will massively reduce the number of sovereign countries. To 0.
If that happens good? Why do we think having countries and borders that creates strife a good thing? If we eliminate all borders and are just humanity I see that as an absolute win.
Humanity needs to be way more interactive globally than it currently is, and for a good long time. Forcing elimination of borders and nations without having a basically uniform global culture - and probably language - is a "bad idea."
Maybe learn how the Five Eyes’ governments, think tanks, and corporate media propaganda work, and how the cold wars[1][2] and red scares[1][2][3][4] never ended.