Does state law offer enough self-defense?

An article (or opinion piece) from the The Janesville Gazette in Wisconsin regarding an incident I mentioned previously:

Unfortunately, Wisconsin law offers Rainiero no protection from a civil lawsuit. So besides the emotional trauma the invasion and shooting has caused Rainiero and his family, he may yet become a victim in a court of law.

That's too bad.

Conservative lawmakers are pushing to enact a concealed carry gun law in Wisconsin. They also may want to take a second look at laws pertaining to use of force for home invasions. We might not want to go as far as Colorado or Florida, but perhaps some middle ground is available to give homeowners more rights.

I wonder where the NRA is on this. Seems like they should really be pushing for protection from this kind of b.s. civil lawsuit. Somebody should be.