I believe in the adage "Do what you want as long as it does not infringe on my rights" My rights as a property owner are infringed by this mans junkyard in his yard. It brings the value of MY property down. If he wants to move out to the country, get the proper permits and open a junkyard, hey hurray for his side, but to bring down my property value in order to do what he wants, and it is a matter of private property rights is a crock. If it effects me directly, he has NO right to do it.
How about when your neighbors house is worth 50% more than your house but your house is bringing the value of his house. Get rid of your house and move out to the country or buy the most expensive house on another block. OR, are you exempt?