This depends on the state. Even this won't do in MA, NY etc. you have to retreat from the criminal to the maximum extent possible in these police states. OTO in Texas their a$$ is yours if they break in.
Yep. In Texas, we shoot to kill. Even before the ‘castle doctrine’ was made legal, a prior country sheriff told my father to defend our family first. Even back then, the sheriff knew the deputies would not get there in time, except to take photos and pronounce time of death.
Here in Texas the law differentiates between day light and night. But I am pretty sure you will walk if you catch a thief in your house in day light. At night Texas is almost a free fire zone, catch someone on your property at night and you walk. Nobody goes uninvited on private property at night here.