Milken did not ”[popularize] mortgage securitization”. Ranieri was at best his contemporary; he was not inspired by Milken. Your own article is a good source on this.
> read the article
I recommend Fabozzi’s Fixed Income as an introductory text if you’re drawing the (incorrect) conclusions that you are from that FT article.
You said “Michael Milken is the man that popularized mortgage securitization on wall-street.” That is wrong.