Lessons from history

In recent years the idea of a simple Hyksos migration, with little or no violence, has gained support. According to this theory, the Egyptian rulers of 13th Dynasty were preoccupied with domestic famine and plague, and they were too weak to stop the new migrants from entering and settling in Egypt. Even before the migration, Amenemhat III carried out extensive building works and mining, and Gae Callender notes that "the large intake of Asiatics, which seems to have occurred partly in order to subsidize the extensive building work, may have encouraged the so-called Hyksos to settle in the Delta, thus leading eventually to the collapse of native Egyptian rule."

https://en.wikipedia.org/wiki/Hyksos

The Ancient Egyptian rulers were weak because of famini and plague. But what makes the modern European leaders too weak to stop the huge migration of Africans and Arabs? Why don't they stop the migration and prevent the collapse of native European rule? Is there a famine, a large-scale war, an epidemic? No, there isn't. Then why can't Europeans rise up and stop the immigration that threatens their lands?

>>1
Egyptian rulers were self elected.

European politicians rely on electorate and external funding. I.e. some Arabian country may have a lobby in Europe to accept migrants, in hope they will damage Europe.

>>2
I.e. Europe needs voting census, so that only wealthy and educated citizens get right to vote.