Yes, like I said it does not excuse it, and for some laws especially those with severe punishment, it's a serious concern.

However in the case of certain types of policies it's not about intentional selectivity, it's about selectivity due to infeasibility, a type of selectivity that is not completely effective against any individual. For instance this one i'm pointing out: it's not possible to hold every single food source hostage in any country... but seriously, we are talking about food... in China... i'm running out of ellipses...