I see your point and have come to a similiar one recently.
I think that any suggestion that you cannot shoot someone for stealing from you or being on your property scares people, regardless of the situation (largely). They want to know they can protect themselves. But I don't see criticizing how someone handles the protection of their property or life to be something we can't do. I don't care if it is the person's right, shooting someone shouldn't be the default in this case.
Sometimes, when I say that, people will tell me "well just invite them in for tea" or something similiarly stupid as well just try to talk to them if they break into your house and want to harm your family. The fact is, neither of those instances is a reasonable response to me saying shooting someone doesnt always have to be the first option.
RE: Want to know the reason why a lot of people don't care that Police murder citizens?