You should stop behaving as a lunatic on internet or a 'big man' since you are p*ssy in real life.
Tell your girls to stop being drunk cum-whores all the time and learn to raise families.
European culture is dying down, multiculturalism is replacing it, and Europe is getting old. This isn't due to anyone else but due to Europeans who thrown christianity to toilet (good thing though lol), became overly hedonistic, and adapted life where traditional family faded and people just regress back to animalistic behaviors of booze, fucking, no respect for parents, selfish hunt for money, and no urge to reproduce and raise kids like cultured human civilizations.
So stop b!tching and solve your own problems.
"Islamic World" has faced, and butchered, Europeans (and pretty much everyone else) in "real wars" for centuries and centuries.
While it has lost other times throughout centuries as well. This is how every human civilization exists.
But guess kiddo? It is not Muslims who are dying. It is not Muslims who are getting old. It is not Muslims who are on retreating front.
Instead, Islamic Civilization is expanding. Tens of Millions of Muslims are in heart of Europe. According to U.N estimates, by 2100, almost 1/3 of entire humanity would consist on Islamic Civilization and would be part of global Islamic peoples (Inshallah!)...And remember, it is not like agnostics "christians" of Europe/America/New Zealand/Austrailia where christianity doesn't play any role in society and is already dead. Islamic Civilization is a living civilization with its faith and culture taken very seriously by its adherents generally. Mashallah.
So stop worrying or making empty threats about others and take care of your own, increasingly irrelevant, "Europa" ...