Earlier quoted context omitted.
FTA: > A widespread misconception about mortgage securitization is that it was created to make Wall Street rich. … > Mortgage securitization, and secondary sales of loans, and other mechanisms cause mortgages to migrate from the banking sector to pools of capital which are more structurally insulated against the interest rate cycle.
Which has the effect of....? At the end of the day, the reasons these choices exist is to make someone rich. The mechanism (shielding from interest rate cycles) is just an implementation detail.
I'm surprised you're against it.