Yeah you should be allowed to use force, but not murder just for the hell of it. I guess I would be one of the 29% who believe even a burglar has some rights. Well, at least the right to live unless you are threatened yourself.
If the version of the Tony Martin story I heard is true, then he deserved to be jailed for killing that guy. Shooting someone in the back from a distance where you are under no immediate threat is plain murder imo, regardless of the circumstances.
Oh and btw, housebreakins are nowhere near as bad as you are making out bustr. I regularly forget to lock my front door both when I leave for work (12 hours) and when I go to bed. And I certainly dont stay in a priveleged area. In fact I live slap bang in the centre of a large town (Hamilton) which is on the outskirts of Glasgow, the largest city in Scotland.