If it's not real and you can't even see it, the next three arguments are unnecessary. Now if it is in fact real, go ahead and make the other three arguments.
No, son, you can't marry a 9 metric ton vengeful animal that has a reputation for being in a terrible mental state, it's not real. And it's also bestiality. And also she's not an adult yet. And also you're 9 years old. autistic 9 year old me seeing cool dinosaur that can turn invisible: