Technology in sport

The Lionesses disallowed off-side goal against USA in the world cup semi-finals made me question the use of technology in sport. I can see the logic of using technology to support decisions where there might have been a deliberate infringement or potential error by officials however I can’t see how it helps the game when retrospective analysis applies microscopic measurements to a level of accuracy that could never be matched in real-time by the players on the field. Being half a boot in front of your opponent would be imperceptible at speed and pace and unlikely to be detected. Where should we draw the line?