The fertility rate for survival in a population, also known as the replacement-level fertility rate, is 2.1 children per woman.
In Spain, the fertility rate of Spanish women is 1.19.
In Italy, 1.20.
In Portugal, 1.44.
In Greece, 1.32.
In France, 1.64.
In the UK, 1,49.
However, the fertility rate for muslim people in the same countries is the following.
Spain, 2,8.
Italy, 2.7.
Portugal, 2.5.
Greece, 2.4.
France, 2.9.
United Kingdom, 2.9.
Now, do your maths. The great replacement theory it is not a conspiracy theory.
It is a mathematical one.