If I steal money and go to Lariba that I robbed the bank and here is the money so take it please and invest it in interest free banking on my behalf. So it is all cool with Lariba ? The bottom line is the money Fraddie and Fannie are investing in interest free banking at Lariba is not interest free it self , it is borrowed at interest or it is given by government to Freddie and Fannie on interest it is not free money. Although it is tax payers money still Freddie and Fannie have to pay interest to Govt. So Lariba is not such an hero. They cannot be they have to one point or the other involve into the business of interest, which they do by taking money from Freddie and Fannie.
essentially you are saying that if pork is haram, u cant make pork stock and use it to make broth for a zabeehah mutton roast..yeah?