Be careful what you wish for. Soon it may be down to one pixel.Exactly. He was 3 pixels offside. I would love to be the wanker who draws lines in VAR replays.
Just because the system can draw a line across the pitch doesn't make it 100% absolute.
Because of the speed of a player and the precise time when the pass is made, it cannot always be 100% accuracy.
Anyway. The advantage should always be for the attackers and not the defenders.
The objective of football is to score goals. Not to find lots of reasons to disallow them.