Actually, my comment wasn't whether someone would want to steal the visors but actually to use them as a tool to break into the car (either discreetly or otherwise) by pulling the window down, if possible.
Weathertech visors have been on all of my trucks for at least the last 15 years. Easy to install/remove. I usually move them to the newer 1/2 ton when the lease is due. Every few years the door structures change & I need to buy a new set for the new model. The set on my '10 F150 are off my '07.
Broke one couple years ago installing them. One phone call & had a new rear pair no charge sent to the house.
Actually looking at a set for the RX. Believe the doors are the same as the previous model?