Oh please. There has never been a time of greater celebration of diversity and individualism than today. If you don't think the '60s were suffering from a bit of "group think" than your prescription has run out, or you just have a selective memory.
There are certain people, usually a certain kind of people, who complain incessantly about everything from the internet to the economy. "these times" are the greatest times in recorded history. We have witnessed amazing advancements in medicine and technology that were actually, literally, science fiction only 30 years ago.
My people (queers and trannies) are enjoying unprecedented acceptance and equality despite a rather loud and persistent opposition from guess who.
"group think" times indeed.