The feds will still go after it as an illegal drug when presented as recreational and the will keep the stigma going on forever. Furthermore it will keep a lot of talented people out of good job opportunities for smoking a joint after work instead of having a glass of wine.
The current state of affairs is the justification employers use for continuing to test and discipline folks for usage even in legal or medically legal states. It’s also the justification banks use for not allowing dispensaries to use their services.