Can-down I am not so sure your conclusions about why some folks, me included think they play little part in defensive shooting. Statistically defensive shooting takes place under 10 yards. At that distance you may or more likely will not be using your sights anyway, let alone looking for a green dot on the target.
I tried them and found initially I was chasing the dot, similar to what can happen using red dot sights. For defensive shooting at targets at useful ranges I found it was faster to just acquire my irons. I am sure other may have different opinions. Red dot optics are faster to acquire than irons and most report improved accuracy. I have read where LEO departments think training time will be reduced with a move to Optic sights. Considering the reported hit ratio in police shootings anything that results in improved accuracy is a bonus. Maybe lasers will do that, I just have not read anything to suggest they do.
Take Care
Bob
I hear you on that Bob, I've just noticed that on gun forums many people view them as simply "gimicks" or like yourself they compare them against irons or redots, I don't see them as an improvement or replacement for using iron sights, but more as a supplement to the irons.
I look at them much like illuminated reticles in a modern scope, are they necessary? No.
Are they a benefit in certain situations..... yes. Do you need to use it just because you have it? No, it's just another option.
Lasers are certainly not necessary in the vast majority of defensive handgun situations and even more so if the targets are not armed.
I can imagine some situations however where a laser would be effective and an advantage over not having one.
I've read some accounts where officers claim that the person they were trying to control became compliant when the suspect got light up with lasers but I don't know if that is BS or not? I would think their may well be some psychological effect of aiming a laser at a suspect armed with a knife who is not thinking straight while looking at the barrel of a gun pointed in their direction but that's a bit along the lines of the people that think racking a shotgun in the dark will scare someone away......
I'm certainly not suggesting that lasers are faster then redots or ironsights for typical action shooting sports...... though I suspect for certain courses of fire if a person was well trained with a laser they might be competitive.
It's natural that most people who have trained a lot with iron sights will have a hard time adjusting to finding a laser dot while their instincts are lining up the irons on target.