I'm not a Christian, but that poem logic is dumber than a bag of hair.

Lemme explain through the art of example.

Roses are red, violets are blue.
I knew this one guy, who's virtue was true.
Or so I thought, until one fateful day.
He stabbed me in the face, and called me gay.

Now, believe it or not, I was talking about Jesus. Jesus truly is a piece of shit, you can tell from my poem. Right?

Wrong.

My poem holds exactly NO merit. Who gives a shit if I wrote a poem? Just because I was talking about Jesus doesn't mean I was RIGHT about him.

This is exactly the same as the Dogma example.