"The U.S. wealth gap has grown so wide, even America’s billionaires can’t help but notice." Yes, even they're sounding the alarm. Peter Mallouk, the CEO of a wealth management firm overseeing about $700 billion in assets, just wrote on Voante, “This is 100% completely unsustainable as a society." fortune.com/2026/03/17/billionaires-warn-a...