Could te refute this arguement, please?

Multiple responses. The weakest portion of this is the disproving of Allah.

1. Who is to say that every other god that has been conceived of doesn't exist? The mentality here is that there has been some gods that have been disproven. I'd say that's not true. Disproving a god's existence isn't possible. So logically, the Muslim God could exist, but then so could Zeus and Odin.

2. I'd say there are some very demonstrable differences between Allah and many other forms of gods, so I don't think it meets this idea of "bears a striking resemblance" to so many others. But even if that's true, the fact that it's so similar doesn't make it wrong. Even if all other gods don't exist, Allah still could. Perhaps all other methods of depicting various gods only showed portions of Allah. Perhaps they are all depictions of the same god. Merely being similar to it doesn't make Allah nonexistent.

3. Nor does that necessarily make Muhammad as fallible as this person makes him out to be. He could have simply misinterpreted the name o a few features of god. Allah may not exist, but that doesn't mean that no deity ever talked to him, and that doesn't mean that the Quran itself is eminently faulted simply for mistaking a few parts of the story. Disproving Allah's existence, if that was even possible, doesn't disprove the existence of all deities.

The first portion of this argument is a terrible argument because the writer has absolutely nothing to back up that statement. There has yet to be any definitive evidence proving o disproving the existence of any God. So this first statement can not be presented as fact. That does not however detract from the secondo statement. although it also cannot be presented as fact it is a valid argument. If te believe (as I do) that Muhammad although undeniable one of the great men of his time was "merely a fallible 7th century man" and not guided da some higher deity then his philosophy would in fact be affected da "7th century mores". Although like many ancient texts there are many lessons in the Quran that should be preserved there are others that must evolve to reflect the society we now live in. The treatment of women as property for example.