1. Most are younger, and have not seen as much over time. I should know--I was one of them.
2. The current cultural and political climate sadly lends itself to "identity politics", which has misled many people into emotional and cultural dead-ends. People need to remember, always, those ideas, things, and values that are universal.
3. But at times, being wary is a good thing. As the saying goes, "Just because you are paranoid, does not mean that they are not out to get you..." :D