You end with apologizing to the tech industry. HOW ARE YOUR LAST WORDS NOT DIRECTLY TO YOUR VICTIMS?!? Personally, I think this is telling. This letter isn’t to “those” people you harassed, it’s to the people who’s respect you crave, but who now don’t want to be in the same room as you.
Also, Binary, your first step is to write a letter to every woman who’s ever pitched your firm and ask them to report any other issues. Don’t do anything until you do that. Although I’m sure your first step will be scrambling to bring on a female partner to repair that image.