Regardless of whether or not this is a stable or wise investment, it's not something that the president should be attaching their name to or otherwise getting involved in. The presidency is a full-time job, with no room for side gigs. We don't want a president who has one eye on the country and one eye on their business interests. That's just inviting all sorts of conflicts of interests - not legal conflicts of interest, which the president is exempt from, but factual conflicts of interest, where they're tempted to do something that benefits their bank account but doesn't necessarily benefit the country. And when I say "we," I really do mean it, because this isn't a partisan point. Ten years ago, the overwhelming majority of Americans (along with every single person who's posted in this thread) would have agreed that of course the president shouldn't be in business for themselves while running the country.