Well reasoned and informed response with recommended reading material.
This is why I love Nostr for open honest discussions on controversial topics.
I am aware of the motto "it takes a good guy with a gun to stop a bad guy with a gun" and I see the merit. Like I alluded to in the OP, in the UK criminals can still get guns anyway - of course.
The home invasion argument for why rifles are necessary protection is a good one. Absolutely if it's a group against one, the rifle gives you more defensive power.
I will take a look at that book.