I really hate the sound of this, if it means United won't compete in the domestic competitions any more. That, to me, would make supporting United something very different. And not something I'd enjoy anywhere near as much.
At the moment, from a competitive level, the balance is just about right for me. I love the European competitions, but only as an addition to the domestic season. Not instead of it.
I get that, from a business level, all clubs are wanting more - and the big clubs are the ones in a position to do something about it. And I can understand the threats / bluffs from both sides.
But if the Super League really does come at the cost of domestic involvement for the top clubs, and international involvement for the best players, then that would be a really sh*tty development in the ever evolving sport and would be the biggest change I've ever known in it - and by far the worst.