Poll The Relationship between christians and muslims?

Seeing as how Islam came around 600 years after Christianity and desperately wanted to deceive even the elect it's only natural to plagiarize the religions that came before it. All the so called "prophecies" of islam are not verifiable as to the timetable they were given and or were plagiarized from Christian works. Islam continues to attempt to say their god is the same god for all but in reality it is not Islam still worships the black stone in the kaaba a piece of the moon god "allah" so other then the plagiarized texts there are no similarities between Islam and Christianity.