Oh dear then you are as stubborn as you are confused. Try the encyclopedia of philosophy which is more authoritative than your google search
the·ism (thē'ĭz'əm)
"Belief in the existence of a god or gods, especially belief in a personal God as creator and ruler of the world."
Your understanding of the fallacy of incredulity is nonexistent and your syllogism is extremely confused. Formally it is invalid as premise 1 is wrong (see earlier refutation) and your conclusion does not follow from your premises. I can't help thinking your first response was a little bit too self satisfied and you've been slowly digging yourself into a hole ever since you were called out.
