Please show me a video of a test where ABS caused an increase in max effort braking distance… if you lock a wheel you don’t just lose control, you lose braking effort also. Have a look at the mu of a tire in good contact with the road versus the same tire skidding.
I said that in some conditions like snow or off-track ABS can increase the stop distance at cost of maintain the control of the vehicle, the alternative (ABS off) is worse because usually you dont have control of the vehicle and propably you will lost the control.
Regards