Wii remote nunchucks are not meant to be used in home defense.
The old saying "pry these from my cold dead hands" is especially pertinent if you are using Wii remote nunchucks to defend your home because a robber could easily kill you.
Unless, of course, you are defending your home from Bowser or Jigglypuff. If that is the case, Wii remote nunchucks are probably better than the real thing because of the easy access to special moves.
So, best case scenario, you should probably keep both kinds of nunchucks handy for home defense. Mad skills.
Wii remote nunchucks . . . eh.