Britain’s Chief Rabbi has warned that Western civilisation is on the brink of being destroyed due to mass migration and low birthrates, following the pattern of the collapse of classical civilisations like Rome and Greece.

Chief Rabbi Lord Sacks has cited Europe’s demographic crisis — the low birthrates below the so-called replacement level for native Europeans — as the most significant factor hastening the death of European society.

Exacerbating this crisis is high migration, he said, which replaces those children Europeans decide to not have with migrants who do not assimilate into Western culture — effectively replacing Western, European culture altogether.

Mr. Sacks said in remarks to the Daily Telegraph that the death of Western civilisation had harrowing parallels in classical history: “The contemporary historian of ancient Greece and ancient Rome saw their civilisations begin their decline and fall, both the Greeks and the Romans attributed it to falling birth rates because nobody wanted the responsibilities of bringing up children.

“They were too focussed on enjoying the present to make the sacrifices necessary to build the future …. all the historians of civilisation have told the same story.”

He continued: “Europe is going to die because of this because Europe can only maintain its population by unprecedented levels of immigration.

“Now those could be integrated into Europe but they won’t be integrated into Europe because when a culture loses its memory it loses its identity and when a culture loses its identity there’s nothing left for people to integrate into.”

Mr. Sacks said the decline of faith in Europe had a large part to play in the disinterest of young Europeans in starting families, and that while many atheists treated British naturalist Charles Darwin with God-like reverence, they had failed to learn the key lessons of his theories.

He said: “Contemporary historians … right now, have failed to find a single historical example of a society that became secularised and maintained its birth rate over subsequent centuries… That’s how great civilisations decline and fall.

“The weird thing is that the only people who refuse to acknowledge this really are the new atheists all of whom are worshippers of a figure up in Heaven with a long beard, Charles Darwin.

“And if Charles Darwin taught us anything it is judge species by their reproductive success.”

The Chief Rabbi’s comments on the havoc wrought by creeping secularism in Europe mirror those made by Catholic Archbishop Sevastianos Rossolatos on Sunday to a congregation, including the Polish Prime Minister, when he said that secularisation is now the main enemy of Europe.

Most developed nations suffer from low birthrates, which in most cases are used as a justification by businesses and governments for mass migration. Although Japan is commonly used as an example of a dying society because of their incredibly low birthrate, it is actually the same as mass-migration-loving Germany, which imports millions of people to make up for their own birth shortfall.

Not all European nations are turning to mass migration to boost population growth. As reported by Breitbart London, Denmark has taken the first small steps towards reversing demographic decline and has already seen an improvement in birthrates.

Changes in school sex education, which has pivoted away from purely teaching about abstinence and birth control to warning young adults that female fertility is limited and has already fallen by half by age 30, is now showing results. There was already a small up-tick in live births in 2015, and summer 2016 is due to see an even greater increase with 1,200 extra children expected.

Also credited for the improvement are a number of campaigns aimed at young people, including a humorous trip discount and free holidays for couples trying for children. Danish capital Copenhagen city council also launched an initiative last year which warned men to avoid habits that would affect their sperm count, and women to keep their fertility in mind.