You can laugh all you want, but you can't provide a logically consistent moral argument in favor of your position that derives from private property ethics. Since you clearly believe in private property, you need to think through your positions, rather than utilizing the government to prosecute people for perceived injustices.

I'm not saying you shouldn't be paid for your images, nor that you shouldn't shout down plagiarists every chance you get, but a copy isn't theft. It's not. It simply doesn't meet the criteria for being theft.