Actually, God didn't 'make AIDS' what he warns is that when man ignores his will, bad things will happen, because these evil things are of this earth, which is corrupted with evil things.
When the Jews ignored Him, they became blind to Him, and no longer under his protection.
Jesus Came and offered Salvation, The world will continue on it's self destructive course, because that is Gods will that this world be destroyed, as it cannot be saved from the evil that corrupts it. "Death was not my creation" he says.
Ah, so because the Jews don't embrace Jesus, it was cool for millions of them to get shipped to death camps?
As for the "evil that corrupts" the world. God made it. He's responsible for it. If he wanted to, he could have made human beings with a much stronger drive towards love, compassion and non-violence.
Since we are related to other animals, we have baser desires and instincts and expressions of the primal. Thus, we get our "corrupted world."