It's a clunky transition, but the transition goes from "I (PG) have a female co-founder" to "here is the makeup of YC as it applies to women" in the second sentence of the second paragraph.
He was accused both of being a sexist himself and of YC being sexist. I would say the "he is sexist" (for the sake of argument, let's assume that "sexist" means "particularly sexist" because it's hard to argue ANYONE is entirely innocent of being sexist) were pretty tenuous, but his attitude toward whether or not YC was biased toward men were pretty off.
This does a great job of explaining the latter, which I feel were a legitimate problem.
He was accused both of being a sexist himself and of YC being sexist. I would say the "he is sexist" (for the sake of argument, let's assume that "sexist" means "particularly sexist" because it's hard to argue ANYONE is entirely innocent of being sexist) were pretty tenuous, but his attitude toward whether or not YC was biased toward men were pretty off.
This does a great job of explaining the latter, which I feel were a legitimate problem.