He started out well, acceptably-PC, stating the equality argument well...
Then he threw climate change in at 2:53 (slipped it in there without even mentioning it by-name), then at the delta you mentioned he encouraged the youth to get in there and change government (predictable, inevitable and the purpose of the speech after all - to support Sleepy Joe and get his clan into government).
Nothing surprising or controversial in there IMHO, I'm afraid Bubba, so really nothing to see here. Essentially he's just trying to rally the troops and maximise the number of lefties who get off their butts and vote in November.
Sorry I've nothing insightful, mate. You asked for my input, and that, such that it is, is it.