1. Insurance. If the bastards really want it, they'll take it.....And an immobilised won't do squat if they come will a flatbed
2. Alarms & immobiliser will stop the honst/incompetent theif.
3. Club lucks are easily by[assed - they just cut the wheel. But will help deter the honst/incompetent theif.
4. Rotor removal - what a PITA to do that all the time. but would probably work well.
5. Kill switch (hidden) will often work really well as the theif would need to trace it to bypass it. By this time the honst/incompetent theif will probably have gotten discouraged and just trashed the car.
6. T/case in neutral - might confuse any theif for a few valuable minutes....but then you are relying on the Jeep handbrake
7. Insurance. If they want it, they'll take it. If not, they might trash it.