Occasionally people will push on the extreme edges of that accepted area, maybe even commiserate on how some things are taken too far, but without ever really challenging the basic belief or seeking to find where the edge of reasonableness might be.
It's not horrible, and I'm just an old fogey whinging here. It just gets under my skin when I hear for the hundredth time a group of kids talking about stuff that I basically agree with, but taking it to the extreme without an ounce of self-awareness that they've crossed into the zone of ridiculousness.
In a way it's because I'm the same, I want "my side" to be more rigorous and intellectually honest than the "sheep on the other side", and it's uncomfortable to realize that the people who largely agree with me on the topics are so sloppy at how they got there. If something else becomes fashionable, they'll just adopt that instead. And if some question comes up, it'll be decided by what feels most in line with what they've already agreed to believe, regardless of the actual merits.
I guess I'll just worry about keeping them off my lawn.