If you keep treating your intellectual opponents like this, you're going to get trounced the next time you run into a smart one.

To be very brief, you seem to think that libertarians believe, roughly,

(1) "the world is simple, so we should have simple rules."

Instead, you suggest:

(2) "the world is complicated, so we should have complicated rules."

But this claim is entirely unresponsive to:

(3) "the world is complicated, so we should have simple rules."

which is what most libertarians I know actually think. If you respond to (1) when your opponents are arguing for (3), you will not have productive conversations.