Shia: why is it hard for you to believe that loving and respecting the companions is part of the Aqeedah (Isla?

I don't understand how we don't believe the Quran is the word of God, when we spend our time reading it, and reciting it during prayers too. Your statement makes absolutely no sense. We're all Muslims, regardless of the sect we belong to, and we ALL believe in the Quran. Stop making a big deal about it. Why do we have to fight? We're all muslims. Get it through your head.