Well, Mr. Richards, you've got smart wife there, and she's right. The neighbors are not going to pay for your fence. 

But if more and more of your neighbors are invading your property, expecting you to provide free amenities such as education and attorneys (to prevent you from kicking them out), and demanding that you provide them all the rights and privileges that your family enjoys, perhaps it would be to your long-term advantage to buck-up and construct that fence yourself.