Why do European countries even indigenous countries accept immigrants? Don't they know what the consequences are for the aborigines? That's definitely not what I meant .../Can I say that? ...

The following is my humble opinion. First of all, the situation in European countries is different from that in India. One is forced, the other is active, and the nature is completely different. Now European countries have enough economic strength and military strength. Why did they make such a decision? It is because their population growth has been in a state of zero growth or negative growth. In the long run, it will lead to social aging and even social degradation. Moreover, immigrants are accepted by standards and plans. They are all high-income or highly educated talents, and they must work for their own governments after emigration. Therefore, in order to alleviate their social problems, they are all exercising this system, and there will be no situation in India.