I believe non-public investments should be banned from Roth IRAs (and that we should close all of the backdoor loopholes to them as well). They were meant for a certain group of people at the outset and were then twisted around in knots to provide more tax-breaks for the well-off (which should be rolled back). I think mega backdoor Roth should not be a thing, rollover Roth IRA should not be a thing - bring Roth back to it's original vision.