^Shiism is not Islam.
No, Shi'a is not the particular intepretation of Islam that you
shiism is an off shoot religion that rejects fundamental teachings of Islam, contradicting fundemental teachings, etc...
An offshoot religion... LOL. Of course, from your
biased point of you, the religion you follow is the one true religion, and everything else is an offshoot, false, etc, etc.
But let's cut the bullshit and be clear: the fundamental difference between Sunni and Shi'a is that after Muhammad croaked, there was a power struggle between Abū Bakr, the Father of Aisha, and Ali, Muhammad's cousin and son-in-law. There was some strife, and the resulting power-struggle saw Muslims choosing to follow one, and some to follow the other.
You honestly wish to argue that the true religion boils down to choosing a side in what was, in essence, a family fight over a dead man's position hundreds of years ago? Don't answer - it was a rhetorical question.
Shias even curse the companions of the prophet (peace be upon them all) and even the wife of the prophet (peace be upon her). They reject hadith and have their own made up sayings in order to curse the companions, wives, etc... they are not accepted within the fold of Islamic orthodoxy and are a deviated sect.
Whereas, Sunnis do nothing of the sort of course. They're kind, gentle souls. And as for being accepted within the "fold" of Islamic orthodoxy, it's easy to exclude someone from the fold of "orthodoxy" when you define what "orhtodoxy" means (i.e. "it's what I
believe in!"). They would probably say the same thing about your sect. The question is, why should be believe either side and not tell you both to fuck off?
Muta ('temporary marriage'), mattam ('self beatings'/mutilations/exagerated mourning), taqqiyya (lying about what you believe in) etc... are all concepts of shiism not Islam and are haraam (forbidden) in Islam.
Interesting. But it is my understanding (and please correct me if I'm wrong) temporary marriages were accepted and allowed under Shari'ah during the early years of Islam. The different interpretations between Shi'a and Sunni in the matter didn't arise until later.