Let us say you have a Rose-ringed Parakeet as a pet at home. It is indigenous to India. Now, let it fly away. It will not remain alone for long. Through its unique calls, it will find other birds of its own kind and begin to survive in the wild, as though domestication had never happened.
Now, imagine you have an African Lovebird at home and release it into the wild in India. It will struggle to find its own kind in an unfamiliar environment. It will face hostility from other birds and will be killed by the local birds.
Every bird has its own survival instincts, natural habitat, ecological niche, and unique calls to communicate with its own kind. These are integral to its identity and survival.
The same is true for humans.
Our skin colours are different. Our languages are different. Our cultures are different. Our landscapes, traditions, and ways of life are different.
Of course, multiculturalism is a beautiful idea in theory. But in practice, it will never work out as positively as its proponents imagine.
You may migrate to a foreign land, acquire its citizenship, learn its language, and adapt to its customs. But physically, mentally, emotionally, and psychologically, you will never feel that you truly belong. You will always remain an alien in someone else’s land.