My experience is the two times I was in a car that needed (and used ABS) it did not help.
In the 600,000 miles I have ridden motorcycles I can not remember a time I needed ABS since perhaps the first 20,000 miles or so.
Difficult point is four of us were riding briskly and the guy on the bike with ABS crashed braking in a corner. His was last of us four and our speed made him uncomfortable, he being the least experienced.
The road surface contributed.
On a motorcycle there are road conditions that can "confound" the effects of ABS.
As can soft shoulders or dirt riding.
Cars are normally much better.
When driving I encountered spilled mulch (I think) at the start of a thunder storm.
Slippery wet mulch coated the wheels and slid. Possibly locked wheels would have scrubbed the slippery off, maybe.
ABS gave absolutely no help spinning down the road. Speed was low, road was wide, damage minor )rear bumper hit guard rail after four or five spins slowed me down.
Second time was passenger in a vehicle with 4 wheel drive and ABS. Driver felt confident going down a steep hill with four inches of fresh snow.
Still could not stop once started, hit a car on cross street (idiot stopped, saw us coming, and stayed there) than a fence
Anyway real world skill and judgment trumps ABS.
Would I want to own a car without ABS ? No. Cars can lull you into not paying attention, and my experience is not typical.
Bikes I have mixed feelings. I've invested a lot of time and effort into "reading" road surface conditions, and distrust complex systems I can not really service.
And there are places ABS is inappropriate.
For bikes " pay attention, focus, they really will do the dumbest thing in front of you."
If this is a car with ABS outbraking a bike. Using bike brakes to the limit (or near it) is an acquired skill involving a lot of practice.
As a young idiot I wanted racing skills and practiced accordingly.
Most people lose the braking contest on reaction time " OMG, I gotta stop."
In those cases, ABS on bikes would probably help. Adrenaline panic does not help braking distances.