Next year there will be many new teachers from abroad, which won’t replace the experience of the veterans who left unfortunately but will fill the seats.
Reminder that teachers in American public schools have to deal with shooter drills and MAGA conspiracy theory nut parents for less pay than anyone at ESF.
Furthermore, there already is a limit to the number of locals schools can take so that doesn't mean that there won't be diversity. Those 3 star people in such a case would qualify as locals. And yes, there are all kinds of people who may be nice or not so nice to interact with. There was hardly a 3 star HKID holder with a foreign passport that actually had a "unique" perspective of being from overseas as a Chinese person like you're suggesting. Very few such people.
I feel like we are all just playing musical chairs in this world. He takes your place, you take my place, I take his place. At the end, the world will keep moving on.