I have discussed with many different people, Christians and others and although some of them disagreed with me, while others converted to Islam, there was a level of respect and polite manners.
Isn't that typical? Once he has recognized the truth is inescapable he resorts to the "insulting my prophet" and "gee when I talk to other Christians we all like to sit around a campfire and sing koom bye yah and pretend we believe in the same God".
"respect and polite manners" brought up by a guy whose introductory email included:
2. Get your facts right. Your ignorant views about Islam might confuse people who have no knowledge, but not most of us. Your assertions about some demonic idol, star, moon and sun worshipping Arabs does describe pre-Islamic Arabs, but not Islam which destroyed such pagan worship, replacing it with the worship of the one, true God, Lord God, called Allah in Arabic.
3. Your current Bible is full of mistakes and contradictions. This is not the Word of God. Stop deluding yourselves!
So, it [the Quran] is the Word of Almighty God, Accept the truth and stop propagating filthy lies.
I will however, be the first to admit that in the presence of increasing blasphemy against my Lord and Savior, I sometimes become increasingly more matter of fact than perhaps I should. But are we called to hedge or hide the naked truth, since Jesus IS truth?