But you cannot say the premises are not correct but want to assume they aren't.
Again can you name something which has a beginning which does not have a cause?
This is an either or.
I do not have to.
YOU have to demonstrate they are correct, as YOU are using an argument that uses them as premises to a conclusion.
I do not claim to know the cause or reason why the universe exists, so I have no burden.
You on the other hand, are offering the Kalam argument as an explanation, so YOU have to defend it and demonstrate it.