If someone @ 100 meters intends to shoot you...... chances are you won't know it until you are hit.
As for a 1W multi mode blinding at 100 meters in miliseconds... lmfao.
Just because the 10,000 square mm bar shaped spot of your MM green 1W looks small to you at 100 meters ( from your end ), doesn't change physics.
I'm not going to discuss divergence, spot size and pupil size, exposure duration, angle of incidence, blink reflex, squinting, ect.... just know all the factors are compounded with distance, so don't take a dazzler laser to a rifle fight at any real distance unless you want to mark yourself as a target.
Now dazzling/blinding with a 1W multi mode at short range is possible/probable and likely illegal in most cases, but always having the upper hand in the real world.... not so much.
Now suppose you have been practicing your laser quick draw and during an argument at the grocery store with a random stranger over.... what the hell ever.... the person you are arguing with reaches into his pocket for his cell phone..... and you quickly lase him in his eyes thinking he was reaching for a gun.... suppose you lase some punk pointing a plastic gun at you from across the street thinking it was real..... you are responsible for your actions Mr. laser quickdraw and in some cases more so as a homemade maiming weapon is not going to be seen as acceptable the way a firearm is in court, this puts you at the same or greater disadvantage to the element of surprise as if you carried a gun and you will still have to abide by the laws that gun owners do as far as if you live in a Stand your ground State or a duty to retreat State even if you can defend your use of a laser to blind/maim someone..... Big IF.
p.s. I wouldn't find you guilty of anything if you lased an active shooter in public allowing potential victims to escape, even if the obvious bad guy was blinded, but some people might..... that said, if you permanently maim someone without a dam good reason, expect no sympathy from the jury.