Apple is already the richest and most evil company on earth, and Disney is an evil mega-conglomerate in its own right.
This would honestly be a nightmare scenario, and I'd HOPE that the government would fight to block it at least as hard as they did the recent MS merger.
But the U.S. has an odd history of holding Microsoft's feet to the fire regarding monopoly law and never Apple.

You'd think Iger would try to sell off Disney properties piecemeal to different bidders to maximize the money Disney gets, and that'd be better for the consumer than Apple and Disney just merging together. But sometimes it feels like CEOs do stuff that's less beneficial for the bottom line just to stick it to customers, as if that's more important.