1. Large-scale free movement of people between administrative states is called "an invasion". Why doesn't Ukraine just let Russians walk into Kiev?
2. Because it would lead to further concentration and centralization of power and money and influence and insanely expensive real estate in the hands of even fewer.
3. Because it is nice to live in a community of people that speak the same language, have a shared culture, and can interact according to some shared norms. I understand this is already lost in Western urban centers, so cultural homogeneity not valued anymore. But those who have it, value it.
> I understand this is already lost in Western urban centers
I don't want to accuse anyone of lying to you on the internet ... but as I've had no problem interacting according to shared norms (with varied languages and varied cultures) in many* Western urban centers, I will suggest you may wish to reconsider the veracity of your sources.
* eg.
Amsterdam
Barcelona
Boston
Edinburgh
Hamburg
London
Los Angeles
Milan
New York
Paris
Salzburg
Seattle
Vancouver
Source: I was born in Toronto, and have been to many of the Western cities you mentioned, and didn’t know anything else until I moved to culturally homogeneous Ukraine. The difference is night and day. Life is just more meaningful and I have a much stronger relationship with people living around me.
I would prefer Bangladesh to Toronto anytime (and yes I have actually travelled extensively in Bangladesh, and I am NOT ethnically Bengali) just because of the cultural homogeneity. There is no place on Earth I hate more than Dubai because of the cultural potpourri. Maybe it’s just me, but I strongly prefer cultural homogeneity over everything else, even risking my life in a warzone right now (Kyiv) because I love being part of a well-defined centuries-old cultural heritage.
Fair enough; good luck! I hope to visit Одеса* some day (but not as a war zone).
* in my head-canon, the "swarthy moldovan" of Смуглянка fame is not necessarily an ethnic moldovan, but possibly a vineyard worker from the Moldavanka slum (as it was then) of Odesa.
2. Because it would lead to further concentration and centralization of power and money and influence and insanely expensive real estate in the hands of even fewer.
3. Because it is nice to live in a community of people that speak the same language, have a shared culture, and can interact according to some shared norms. I understand this is already lost in Western urban centers, so cultural homogeneity not valued anymore. But those who have it, value it.