Because everyone drive's Hondas, therefore everyone else knows how their car works because they also drive Hondas and know what mods are worth, where all the wiring is, how to get in through the door without damaging it, all of the interior space a kill switch can hide etc. They know WHERE to sell the parts, they know the target buyer for anyhting Honda is the most common. If they own the car at home they have all the time in the world to practice things on theirs.
Like, 90% of the time a car is stolen and the reason isnt that they keys were left in it (at least amungst the car community in Atlanta) it's a Honda Civic, or an Acura Integra. Not saying to buy another car, but just another reason on my personal list that I wouldn't buy one.