Not when quran 9:73 says
Surah 9:73
O Prophet, fight against the disbelievers and the hypocrites and be harsh upon them. And their refuge is Hell, and wretched is the destination.
Disbelievers are obviously anyone who is not a muslim and the hypocrite is obviously the people who say they are muslims but are not true muslims and following the command of the quran where it says a believer can have no real faith until they make Mohamud judge over all things and follow his decisions with full submission.
So when you get different muslim sects who all believe the same quran yet don't agree on other beliefs about islam, then they all believe the other is apostate/hypocrite and not following Mohamud with full submission.