Shia, why do you Slander Fatima(RA). You say she curses everyone?

we shouldnt be hating or targetting the sects of muslims, we should all try and unite together,after all we are all musims the differences will always remain.Our beloved Prophet did mention that this ummah will divide into 73 sects and only one sect will enter jannah. So instead of targetting each other why not find out who is that one sect who will enter jannah