It’s too late for Europe, even if they stop new mooselimb invaders. Their only hope is to not only stop new invaders, but they have to remove the vast majority (95+%) of invaders currently in country. Then, they might have a chance to survive.
Too that point...they’ve gotta start making babies again. The Leftist adoption of multiculturalism, feminism and the murder of the unborn child are killing Europe.
They’re going to have inevitable war.