Yes, and they are all about as ridiculous as this one.
There are two “rational” lines of reasoning “proving” that there is a God.
- Argue that something exists, and then call that something God.
Of course, no proof is offered why this thing is God. How do you know that the first cause was a purposeful cause, for instance? Most of the causes we observe in nature aren’t purposeful, they are random. It is more likely to assume, therefore, that the cause of the universe wasn’t a purposeful cause.
You also claim that Jesus was God. Jesus was born, and therefore caused. If Jesus could be God why can’t I be God, or my Rock be God?
- God, by nature of who God is, must exist.
These arguments at least attempt to prove something that is recognizable as a “god”. But there aren’t any that succeed. Plantinga himself admits that his argument isn’t “always a good proof of God”. (I would have thought that a logician of his calibre would know that argues are either valid or not. There is no such thing as an argument that is “sometimes” good.)
If you want to argue the rationality of God, pick an argument, explain why I should believe God is this thing that you say it is, and we’ll argue whether you have succeeded.
I’m not going to waste my time refuting every argument for God in the whole world, because no one who believes in God is going to even consider the arguments.