Relative to population, ever since the end of the Rwandan genocide about twenty years ago, humankind is living through its most peaceful time in all recorded human history. In no other twenty-year stretch can I find - again, relative to population - a world with so few major wars, so few famines, so few plagues or pandemics, so few grand injustices including genocide.
What's more, today, people can travel farther and faster than ever before...and more safely than ever before. And anytime we want, we can communicate with people on all six of the populated continents - truly, the stuff of science fiction. And since you're so concerned about western civilization - those of us in the West have more rights now, TODAY, than ever! The one "freedom" that has been taken away - and the one the DP conservatives seem to be so worked up about - is the "freedom to discriminate".
In other words, your "good old days" weren't nearly as good as you seem to think. This isn't to say that we don't face dangers - we most certainly do! But your apocalyptic scenarios are, when compared to the real dangers, frankly laughable. If western civilization were to fall, it won't be due to anything stemming from religion or politics, but from physical dangers - an asteroid, a Carrington event, a supervolcano eruption...all of which have happened before, and will certainly happen again.
You need to pull your head out right-wing echo chamber and learn what the real dangers are.