MI used to have similarly stupid laws. “Duty to retreat” even when someone has broken into your home.
“Level of force used must be proportional”, like the above, if they’re unarmed, you can’t be armed (2-on-1. Younger aggressors vs smaller, older victims. Disparity of force. Hello?). “Oh, you put down your baseball bat because it looked like they were unarmed, but they were hiding a knife? Too bad, so sad. Tough shit for you”.
We finally got Castle Doctrine in 2007 (2008?), where use of deadly force is allowed to defend yourself from potential harm, anywhere someone makes illegal forced entry into an occupied roofed dwelling (so an attached garage counts, along with the house itself, of course. And even a tent, if you’re camping somewhere legally).
Had one just a few years ago. Some drugged up nutjob was kicking and banging on a woman’s back door, trying to force entry despite her yelling at the guy to go away, and that she was on the phone with the police. He continued trying to break in the back door, and the 911 call recorded her yelling, “I have a gun! Stop trying to get in or I’ll shoot!”. He continued and she shot him through the door, citing that she was afraid the door was about to be breached. No charges filed.