I have argued with many disbelievers regarding this, there is one in Australia named Abul Kaseem who is disrupting our faith. Please check on some of the garbage that he writes. Any web site that says Abul Kaseem.

Praise be to Allah, the Lord of the Worlds; and may His blessings and peace be upon our Prophet Muhammad and upon all his Family and Companions. We did browse this website and came with the conclusion that the ideas and concepts it conveys can never be adopted by someone who truly believes in Allah and the Last Day. It involves blatant heresy through slandering the Religion (Islam) and Allah's Book (the Holy Qur'an). This website must never be viewed by anyone who has no considerable level of Shariah (Islamic law) knowledge. In fact, surfing such sites with no adequate knowledge on the part of the viewers may make doubts and misconceptions to infiltrate into their hearts. For such reason, Muslim scholars do their level best to warn Muslims against socializing with those who have crooked ideas and deviant hearts. Allah Says (interpretation of meaning): {And when you (Muhammad) see those who engage in a false conversation about Our Verses (of the Qur'ân) by mocking at them, stay away from them till they turn to another topic.}[6:140]. We hereby advise this man (the owner of the site), hoping that he has the chance to read this Fatwa, to repent to Allah, The Almighty and give up such destructive ideas, for he is in a great danger. He must keep in mind that Allah may put him to sever punishment in this world (present life) and in the world-to-come (Hereafter). In case he is willing to sincerely repent and turn to Allah, then he has to amend what he has spoiled (i.e. to make up for the bad ideas he has spread by substituting them with right ones) as Allah Says (interpretation of meaning): {And verily, I am indeed Forgiving to him who repents, believes (in My Oneness, and associates none in worship with Me) and does righteous good deeds, and then remains constant in doing them, (till his death).}[20:82]. Allah knows best.