What’s going on with Millennial parents?

I’m a casual observer of r/Teachers and from what I gather, students have never been more disrespectful, disinterested in learning, and academically behind. A common complaint is that the parents of these students have little-to-no involvement in their children’s education.

Since most grade school-aged kids have Millennial parents, what do you think is going on with the parents that is contributing to this problem? What is it about our generation?