While I hate Trump, the moron who worship him are the only reason Theil and Vought's evil plans are being implemented. Vance doesn't have Trump's kind of charisma that works on morons, or the stubborn man-child force of will to make things happen.
MAGA will fall apart without their glorious leader at the helm and the bucket of snakes will start to eat itself. The chaos will still do a lot of damage, but not as organized because they don't have anyone to fall in line behind.