Nothing he's done has prevented them from enjoying their property, they're just no longer able to enjoy HIS property.Actually, they can still enjoy his property (the view), they just have to walk up to and look over his fence to do it.
No he is charging people to enjoy his view. He had to PAY to stop people from enjoying the view from the property. This is not a matter of his innocence. He had to pay a lot of money to extort money from the people on the lake. The purpose of the fence is to deny people the right to the enjoyment of their property for the expressed purpose of obtaining money to remove the fence. He actually built the fence to DENY people the right to see the lake so he could extort money from them.
He paid to put up the fence so he could charge people to take down the fence. There is no other reason for the fence except to extort money.