Society can survive with bad tendencies. Think about 50 years ago when American restaurants were full of cigarette smoke, and rivers would get so polluted they'd catch on fire. People still survived, even thrived. If we had ignored those problems, probably someone today would be saying "Opiates? Global warming? Just more moral panics, the way a few decades ago everyone was worried about the environment and smoking."
The dangerous thing is that once these trends become part of your society, it's hard to imagine the world without them, and hard to see why people make such a fuss about them because they can become an immutable part of your reality. You become blind to them. I'm sure, given enough time, we'll become blind to new negative trends in society just as we've become blind to previous negative trends. But that's not a good thing.