The UK has odd laws on self defense.
Lethal self defense is pretty much forbidden. No guns, no knives, etc.
Using to force to protect property is also forbidden.
Folks trying to defend themselves must use “reasonable” force in self defense - subject to review by courts and judges who were not there. “Disproportionate” force will get you a jail sentence.
As as I can tell, if you win, you’re probably wrong.
Complete crap from start to finish.
I am a Brit, and in 2008 used said laws to defend myself, family and home. So I know firsthand that your post is frankly rubbish.