I fully support what you are saying, the rule of law is very important to our country, especially during the tumultuous period we find ourselves in. I don't think the AG should in any way use DOJ policy to subvert written laws.
On the other hand, it's not also wrong to admit that Sessions is a bit of a retard when it comes to weed. He has publicly declared that it is "only slightly less awful" than heroin. I have family that died from opiate use, and I don't too much appreciate fucking assinine statements like that, which only prove to further a narrative originally designed and crafted by the cabal.
It has nothing to do with it being about weed, it's just a signal that he lacks some basic critical thinking, intellectual integrity, and resistance to false narratives. Not the best qualities to have in our AG.