I ALMOST agree with you. However, I think the main problem is that the rank 5 USA power comes from the closest edge. Normally this isn't much problem, but against an AI that gets it early it is. Stormtroopers are relatively easily countered by machine guns, while the heavy mech drop can be stopped by missile troops. I felt the bigger problem fighting insane robots is is that gatling weapons tend to shoot airborne drones, and with the amount of damage that spider mines do defenses get wasted pretty quick.
I'll try some games against insane robots as I've turned down the power of spider mines, so I'll see how big a difference that makes.
EDIT: So after trying with a friend to take on Insane Robots a few times, either we're both miserable at Generals (which is entirely possible), or he does need to be toned down. Given both the storm trooper and heavy mech drop plus the hellfire drone strike (which is immensely powerful), there isn't too much you can do. And then a volumetric bomb goes off over your war factory and strategy center.
Exactly. I spent the first part of the game preparing for the AI barrage with the laser gen, getting all the AA, laser infantry, and turrets I could build. While my units were busy taking care of the cyborgs, the spider/cluster mine destroyed most of my defenses, and the mechs keep what's left busy. By the time the hellfire drones and the bomb get there, I have no defenses.
I suppose you could mess with the AI and build a "decoy" war factory/strategy center somewhere far away, but it's still a little unfair.