We can't legally carry at all, and at home the guns should be locked up and empty of ammunition, so in practice we can't defend ourselves with guns at all.

All these rules have come in during the last decades, you could still get guns fairly easily, and the permits, and it was still possible to get carry permits too, when I was in my teens, although the rules were even then tighter than most parts of the USA, including the worst gun rights states there. But they just kept tightening them, and mostly kind of hidden too, our MSM never wrote anything about those. When I considered starting shooting as a hobby a decade ago I was very unpleasantly surprised when I found all of that out. I knew a couple of men who owned guns and practiced shooting as a hobby back in the early 80s, and had always just assumed that the rules were still pretty similar to what they had been then, bad, but nowhere as bad as they turned out to be.