@MaybeNotBob bad refereeing decisions have happened to other teams, and your post just highlights the general delusion at Arsenal.
Every week, fans of other clubs are on social media complaining about the quality of refereeing. There are mistakes consistently, for everyone.
I haven't seen the penalty, but I do remember Arteta after the FA Cup 3rd round at Emirates, and him blaming the referee then. We went down to 10 men and your captain missed a penalty, that's why you didn't win.
I think we got loads of decisions when we played Everton at Goodison this year (sorry @DuncinToffee) and just this week, everyone was going mad that Tarkowski didn't see red.
It's really not a conspiracy, you just ain't good enough. Even without these errors, I doubt you'd be 1 point off top of the league. And if you were, you'd bottle it again :(
And I'd rather anyone than Liverpool lifting that Premier League trophy!