In that case, your argument is invalid until you demonstrate that all things but God, including the universe itself, came into existence.And as demonstrated, they are two different statements! My words are saying that nothing can "come into existance". You said that I said "nothing can exist". Clearly, you either cannot read, or perhaps this is another one of your desperate attempts to make yourself credible. Are the words "come into" in the first quote? No. Is there any synonyms for the words? No. So how can the statements mean the same if neither the words or it's synonym match? Exactly. They don't. They are two different statements with two different meanings.
There are other problems with it as well, but that's the biggest one, IMO.