Arrow's impossibility theorem and Gdel's incompleteness theorem

Some people tell me that Parecon can’t be realized on the grounds of Arrow’s impossibility theorem and Gdel’s incompleteness theorem. How to refute it?

I’d probably just laugh. I mean, really, you just gotta. Arrow? Who? What? Really? That’s hilarious. Gödel’s theorem? Seriously? Really? That’s even more hilarious! Well, if they say so! Shit! What’s an idiot non-logician, non-mathematician like me to do, huh? My stomach hurts. But then again, maybe…

this statement is false!

Has no relevance. There are much better criticisms of ParEcon than that.