No, what I said could not be said by a member of al-Qaeda, because they rather support the islamization of the west, remember? What I said is that we need to fight against it.
Swap a couple of words around and you have their basic message.

As for my perception of Islam, I'm only going by how muslims consistently portray it, and by what it's authoritative texts are telling me about it. I mean, if I invent a religion right here and right now that calls for violence and massmurder, and I then commit violence and massmurder, pointing to my religion to justify it... could people really fault you if you saw that religion as being a violent one that supports massmurder? Would it make your view on it more or less false because it happened to be the same as mine?
I don't think Islam or any religion is inherently violent. Neither the Qur'an nor Islamic history argue that Islam is a violent religion, as we've seen that notable Islamic scholars, even from right after Muhammad's death have re-interpreted the Qur'an to say something else. The Sabians of Iraq? Not necessarily protected under Islamic law, but they managed to interpret several scriptures to say they were. The status of Buddhists and Hindus? They largely lived as dhimmis and were not regarded as kafirun by the Muslim conquerors.

the reason why it's important to point out that they're doing it because of their religious beliefs is because of all the lies they spread
Is this a reference to the Shi'ite concept of taqiyyah? Or is it just a general attack in the direction of Muslims that spread lies?

they are attacking us because their religion tells them to do so.
Oh yeah? Then where are the historical mass murders? I don't see any Muslims barging my door down now to kill me. Are they barging your door in?

You're pretending, or it looks like you are, at least, that true Muslims are obliged to kill non-Muslims all the time, everywhere without ceasing. And thus, Muslims that are not doing that are Muslims-lite. I'm inclined to believe the opposite, that the ones who call for the mass-murder of non-Muslims are the Muslims-lite. You'll see that institutions like al-Qaeda and the Muslim Brotherhood were founded by and still have a core of people with no background in Islamic theology. Sayyid Qutb? A school teacher. Osama bin Laden? Trained as an engineer in Switzerland. Al-Zarqawi? An alcoholic thug with very little schooling at all.

And let's not forget that terrorist groups have killed more Muslims than other people. Some of them even call for the death of secular Muslims. Y'know, the same secular Muslims you don't trust either, apparently.