As woeful as many of them have been, I don't agree that the players they've been signing from other teams are "rejects" at all.
Manchester United have consistently spent big to bring in their first choice transfer targets in recent years. Rarely have their signings been fringe players at their previous clubs. But United have had a remarkable knack for paying hefty fees for players who then can't make the step up, or worse still, actually end up becoming worse than when they arrived.
It won't.
Let's get real. It can be a real pain the ass when VAR takes forever to make a call, and then makes a decision completely inconsistent with the usual procedures.
But I haven't met a single person who has stopped watching matches because of VAR, and if it was going to happen, it would have been when it was first introduced.