I totally agree with you. Because I lived in overseas for 30 years and am living in HK now. I totally understood your points.
Every country has its good and bad points. HK and overseas country each has its pros and cons, and suitable to people at different stages.
Actually, some posts from someone who just migrated to overseas for few years to show off how good overseas is, how foreigners are so nice, how big the house is ... just made me laugh !!!
My friend from Australia told me that her gas bill has increased from AUD 170 to AUD 700 because of tax !! So really can't just look at the surface and envy people's life in overseas.