Does it ever amaze you how Muhammad, just one man, can do so much damage?

please i dont want to hear how he was a good guy, ive read all the horrible things he did, inations of poets that criticized him, severing the heads of over 800 jews of banu qurayza, burning athiests alive, cutting off people hands and feet, raiding caravans and killing the meccan coming back and forth from syria, etc... the list goes on. Now i look the world and i see all the tragedy islam has caused, does it ever amaze you how one man can do so much damage?