First, I don't agree with your logic, if it concludes that because we have something, say nukes, everybody else can have them. If you value your life you don't let maniacs - or sworn enemies - have the means to obliterate you.
Secondly, N. Korea is not building toward ICBMs in order to have communications, but in order to threaten us, and sell them to others in order to threaten us.
We are not talking nukes, we are talking sats.