I don't disagree. I put a combo on my Glock 34 nightstand gun when I had to move into the guest BD because of the wife's injury, but my master BD gun was a Judge... so I had a handheld tactical light there. I was trained to use it only intermittently to verify a target, not to search with it, and to hold it high, forward, and to the side while the photons stun/blind/intimidate (OMG a 7.5' tall homeowner, run!!) the target and spoof his aim... if I get hit in the light hand or arm I survive to win the day.I have issues with lights, they have gotten so bright they will ruin your night vision for hours. They also provide a target for bad guys. Operating solo with a light may not be wise.
Lasers can be cool if you have a cat.
Frankly I do all my best work in the dark.
If you don't have presbyopia yet you will have it eventually. It makes it hard to focus on near objects, like things you are reading and the sights on a handgun. I have special eyeglasses made to use when I shoot at the range. They allow me to keep the front and rear sights in focus without blurring the target too much.
But I'm not going to be wearing those special glasses in a self-defense situation. If I'm wearing any kind of glasses it would be my usual bifocals.
If I look through the upper far vision part of my bifocals then the sights are completely blurry. If I look through the lower near vision part of my bifocals then the target is completely blurry. Plus, do I really want to be squinting through the narrow part of my bifocals in a self-defense situation, trying to see my fancy night sights?
I realized that because of my presbyopia my sights - any kind of sights, night sights or not - are going to be pretty useless in a self-defense situation, most of which take place in low-light conditions.
So I decided to put lasers on all of my self-defense handguns and practice shooting using just the laser and not the sights.
Even if you don't have presbyopia (yet) lasers also let you focus on the threat instead of on your sights, enhance your ability to maintain peripheral vision and situational awareness, and allow you to shoot from awkward positions or from behind cover without having to get your head behind your sights.