Does Allah request Islam to destroy His creations or does Islam teach that Allah is imperfect?

That's just customs and not according to Islam. Islam only recomments circition of man. These practises are in Africa is due to their ingnorance of Islam. IGNORANCE. Not a single verse to support these actions in the Holy Quran. It does ask man and women to protect their private parts and not to mutilate. As for man's circition, that is a good custom of Prophet Abraham (pbuh) which all Muslims follow.