I'm not inclined to go down the systematically corrupt road, although these last few days have not been a good look for the PGMOL.
But I do think Michael Oliver has given us enough dodgy red cards that we can now say he is at the very least unconsciously biased against us. The stats are stark and I think the MLS dismissal is a textbook example of this unconscious bias.
He was behind the incident and so did not have a great view of it, so he guessed and gave himself no time to think about the decision (you'd think removing a player would require at least a degree of thought), he reacted emotionally and not logically.
Darren England's application of the VAR process is the thing that concerns me, although I'm sure that when we hear the audio, it will all be very plausible. Especially given the still image @flobaba referred to previously.
I just can't see how he can have justified a decision, with all the images available to him, that almost to a man, the entire football world has been utterly shocked by.
The speed with which the appeal was upheld seems pretty telling, but I don't know if that's standard.