Islam is a religion (?) of low expectations. If you destroy that rock they will pick another one. The rock is not the problem, it never hurt anyone. The people are the problem. It's not the rock that tells muslims to go out and kill infidels, it's mullahs.
Actually, the rock is extremely holy to them. that meteor is what they believe was sent down to heaven after adam and was where Abraham rested adn where Mo went to see heaven. When that rock was taken by the Qarmatians (Zoroastrians rebelling against islam), it ushered in a drawback to islamic expansion. No, destroying MEcca and Medina is the only way (incidently did you know that Medina was a Jewish city until Islam? and that was where the Jews protected Mo, mistakenly believing that he was a monotheist come to bring others to Jewish beliefs — they were wrong and mo came back to slaughter them0