John Locke would be proud of Texas law; so would Jefferson. This thread is getting way off topic (stealing a boat trailer) but it is fun, and lets me exercise some thoughts I haven't spent much time on in recent years
I am in Vermont; I am not a lawyer, however. But if I detained under gunpoint someone stealing my car or breaking into my tool storage, I am not worried about being prosecuted- at all. Now if the guy threatened me in some way and necessitated discharging said firearm, I would expect to be temporarily separated from my firearm and a pretty uncomfortable investigation to ensue, but in the end, I have no fear of being arrested.
Unfortunately, in many states "Natural Law" and governmental limits on freedom only to protect individual rights basis set up by our constitutional framers (based a lot on Locke's treatises) has been compromised by legislation. So there does exist legal complications in some states.
The Lockean idea that one's produce (income, these days) becomes part of one's self by very nature that we have invested our selves into it supports the position that to defend ones property is an extension of defending one's person. I am sure with the history of Texas and a lot of other western and south western states this is the reason that their laws reflect this poignantly due to very real understanding of cattle rustling, mixed grazing, and trespassing.
I am not advocating the 'wild west' either, but as highly as I respect our law enforcement, if someone is stealing my tools, the police probably won't arrive in time to stop them. And I really don't think yelling out, "Freeze! Don't move! I have a phone and I'm calling the cops!" is really going to detain anyone for the impending police arrival

And if they are armed...?
Presenting or - God forbid- using lethal force isn't something to be entered into lightly, but I would rather have that option. Then at least I have a choice. And the gravity of such choice I hope is always a deterrent to me or anyone else unless it is necessary. But I want that choice, and I am glad that I have it.