I don't know of any other theist who would define faith in this way, and I don't know of anyone who would say that they have this kind of faith. A person is not going to believe something unless they think they're justified in believing it. I would wonder how exactly you're using the term...
Have you been living under a rock? If you just Google "proof of Christianity," "proof of Islam," etc., you'd find thousands of examples of what you're looking for.
Well, I would first doubt your claim that the Qur'an is the only scripture which has been perfectly preserved. For most religions which came into existence after the invention of the printing press, their books have arguably been perfectly preserved, as with almost any other book which was...
Of course, but @Ghazaly asked for questions and objections and claimed that the Qur'an is "manifestly a true revelation," so I engaged. I have no illusion that I'm going to discover the Truth in a single thread; the goal is to have constructive conversation which hopefully results in both sides...
I wonder if the people who say this would be fine with it if there was no public health risk. Either way, how does that reflect on the world if that's the kind of argument you need to make to get people to care about homelessness?