bc its not easy or cheap or feasible to a lot of people:
https://www.youtube.com/watch?v=KbXxR73QDY0
or if you prefer a bbc link: https://www.youtube.com/watch?v=Q42kRVCCkcQ
edit 2 : if i recall a vid i watched long ago - the closest “western” country that won’t send them back is either Cambodia or Laos - which means they have to travel the entirety of China - a country that loves to send them back - to get to that country. not easy as china is huge.
arithmancy - which is pseudomaths in a sense…