May I ask why you feel that way?
Several reasons, in a SHTF moment, its much easier to sweep your weak side hand with the muzzle, there by, increasing the chance that a person may shoot himself in his own arm. Second, carrying weak side doesn't give you the ability to point and start shooting (Like they do in quick draw shooting, where they shoot from the hip) in a SHTF moment. Third, a person can draw a firearm much faster when they only have to move their hand a few inches to access their firearm, versus the distance to go across their stomach, have their left arm potentially get in the way, draw the gun, and then sweep it across a great area in order to get it on target. And finally (for me anyway, I'm sure others will chime in with more), I've been trained, especially for a non firearm attack (knives, clubs whatever), to blade the weak side of my body towards the attacker. Assuming that someone where to hit me with something, or start slicing me up, I'd prefer to give up my left arm, leaving my strong side to control my gun, versus having to swing my strong arm across my body and into an area vulnerable to attack.
For driving though, it's hard to beat a cross draw, but when I weigh the options, I feel I'm more open to attack on foot, than in a car, so I carry to those odds.