Amazing how everyone here read one document that happens to have numbers in it and out of that earned a PhD in statistics and demographics! I thought we were going to hear from chaliehall? Oh wait, you decided to antagonize him about his rabbi in this thread, no wonder he hasn’t come back to comment.
I won’t go through all of the reasons why this study doesn’t prove anything about a shidduch crisis (again) because google can help you find old posts. But since we are proving things anecdotally, how many litvishe or sephardic girls do you know who married chassidish boys? Practically none do. How many chassidishe girls do you know who married litvishe boys? I know a large number. Point is, no one wants to marry a chassidishe boy, not even chassidishe girls. Thats why they have a crisis, and that’s why litvishe boys outnumber the girls in their parsha.
I dare you to prove that anything else contributes to the shidduch crisis.