Ever since SAF retired, the officiating side of English football has been one big revenge campaign. It's undeniable at this point.
We've done plenty to scuttle our own ship, but it has also been under constant assault from the refs. Cheated time and time again, consistently, season after season. It has had a very real impact on the club's ability (and general inability) to cling to the top. There's a disctinct and plainly visible effort to bring United down, and it's only the witless ABU cries of "no there isn't, shut up!" that prevents it from being brought into the light. It was obvious five or six years ago, but now it's just nakedly corrupt.
Referees don't dare give anything to United, because on the extremely rare occasion that they do, they're drawn and quartered in the court of public opinion. Meanwhile, if they blatantly help our opponents, they face no consequences and are even celebrated for it by our rivals. I don't consider myself a conspiracy theorist, but this is not a theory anymore. This is a self-evident fact. It's not the theory of a conspiracy, it's the plainly observable evidence of one.