Before VAR, let's say a goal was scored and allowed to stand. After the game, some obsessive person decided to spend an hour of his precious time pausing and reversing replays and came back arguing that the goal should have been disallowed because the scorer's toe-nail was offside. What would you have told him?
My bet is you would have told him to get lost and get a life. Because before VAR, common sense still prevailed. People understood that football was a game of margins and human errors, and that getting every single offside call right down to the last millimetre wasn't just impossible, it wasn't even something to aspire to.
Now, common sense has been replaced by pedantry, and the tosser who was laughed at for shouting "but his toe-nail was offside!" is now the tosser calling the shots.
It genuinely baffles me that there are football fans who don't see it this way.