That is not a 'traffic light' issue then - the give-way sign is in force at that point.
Does everyone opposed to the 'turn on red' principle approach all give-way junctions with fear and trepidation? Its exactly the same principle.
You could argue that give way signs are generally applied to junctions where the flow of traffic is less than at the junctions that traffic lights are used.
And so to turn those busier junctions into give way junctions, (IMHO) would in fact increase the risk of an accident.