Very interesting post.

if there are regulations for AI it will not be harmful but if we train AI to do military stuff ( like Skynet from Terminator ) then there is a problem.

AI can do a lot of good to humanity but can destroy it too.
Take as an example a dog and his owner.
if you train your dog to attack everyone that enter your backyard the dog will do it no matter if the intruder is a thief or a child that want to catch his ball. you can't put the blame on the dog