Are people actually arguing that this can't happen? All that needed to be solved was the power problem...generating a powerful enough laser to cause combat-effective damage. The ABL 747 has knocked down a test missile already at a very large range thanks to the powerful laser burning through the tank skin. It's only hard to track an object that you're very close to, but if you're out a few miles they can't outmaneuver a camera and therefore the laser. All you need is a powerful solid-state laser that can fit in a fighter which is still under development. The F-35's bay for the B model lift fan and available shaft for power from the engine has made it very attractive for that eventuality.
No pilot will feel the heat of the laser unless it's on their cockpit. After all, the engines get a LOT hotter in full AB but they don't feel that! All you need to do is hit the wing of a plane where the fuel is. You start a fire and it's over. It's not some laser point the size of a pen point that has to sit on one spot for 10 seconds, the beam is wider than that and only has to stay in the general vicinity. Look at the video of the drone. First a fuel leak is started, which isn't in of itself fatal, until the beam's continued dwelling on that area ignites the fuel. That's the end of the drone. Regardless of whether a pilot can manage to put out the fire he's combat ineffective at that point, RTB.
Sure there are laser warning devices like on the Ka-50, but those are meant to detect a targeting laser's scatter, which you may notice function just fine at 30k+ ft designating LGB targets and even moving vehicles. No radar needed, computerized optics can track these objects. The cynical can say the pilot could roll the plane to dissipate the heat, but how long can they keep it up? Aileron rolls ad nauseum aren't going to get you away from AAA, SAMs, or missiles. A laser used together with another weapon, say aiming it at the wing while the pilot is pulling hard g's to break a missile lock, will be a deadly combination.