The British wiped the Thugee religion off the face of the earth - and they did it with bayonets.
Islam can be destroyed.
Read up on the Maxim gun - and how the British completely brought to an end the last Islamic resurgence.
God also did it with the 10th Plague. By killing the first born of Egypt, the connection to the Afterlife in the Egyptian religion was broken permanently. By making Medina and Mecca nuclear wastelands, the most important Pillar of Islam is thus similarly broken forever.