Islam clearly acknowledges different religions, and each one of them too whether they are polytheists or not. Islam unlike any other religion is the only religion where all the Muslims believe in the same God in unison. Other religions don’t recognize Islam. The fact that Islam mentions people from every other religion only proves further that Allah SWT is the creator, the God of all. Allah SWT has promised to protect the Quran and that it will not get corrupted like the rest of the books.