This is a great article from Rev. Jennifer Wilder on the dangers of "nostalgia" in religion. We all long for the good old days, but the good old days most likely weren't that great. Instead, they were like all days and all times: messy, complicated, and full of messy, complicated people.
The idea in conservative Christianity that we are somehow at "war" with shifts in culture leaves out a lot of complexity and a lot of people.
From Rev. Wilder: