I argue with idiots for fun
Is that really productive? Why do you argue with idiots for fun?
It's easy to win an argument with an idiot, no one can be bothered to consider me an idiot.
You shouldn't waste your time arguing with people you think are idiots. It's a waste of time when you could be doing something more productive.
There is nothing else to do.
Don't you want to be more productive in your life? Making arguments for the sake of it can take away time from things you'd actually love to do! Why not try joining a debate team so you can use that arguing in a better way?