Ok I read more.

Mainstream Islam preaches racism.
You're preaching racism right now.

Mainstream Islam preaches sexism.
Sexism is not extremism. But, even so, Islam is far from the only establishment that preaches sexism. Furthermore, they are culturally brought up to believe the behaviour of our women is immoral. People are entitled to hold that view without being deemed "extremist".

Contrast this to mainstream Protestantism
Contrast this with a religion that has seriously oppressed the shit out of Catholics.

In mainstream Islam, if you're not a believer, you're an other (*cough* apostate *cough*), whom the mainstream of believers implicitly condemn (and a significant proportion explicitly condemn).
I haven't heard the population of Indonesia condemn me for not being Muslim. Citation please.