Why didn't the European immigration crisis come to Asia?

Where is the "immigration crisis" in Europe? Do you mean the current refugee crisis?

In the Middle East, it has been publicized that western countries have good social welfare, good environment and loose immigration policies, so many people poured in, which led to a large influx of European refugees in a short period of time, and millions of people entered the country, which caught European countries off guard.

Asia has always been a place for immigrants, with a large population and always outward, so it is not Asia's turn to do this.