It’s not the comparison of number of fatalities to other states....it’s the INCREASE/DECREASE in fatalities since the introduction of legalized weed into those two states alone. Thought you’d pull a fast one, huh?
Since marijuana legalization, highway fatalities in Colorado are at near-historic lows - https://www.freerepublic.com/focus/f-chat/3280359/posts
So you want to assign a causal relationship, while ignoring all other data. I doubt you’d accept such junk science methods from a global warmer.
Explain why California has remained among the lowest in fatalities among the states, despite having quasi-legal pot since 1997.
This is CA, the land of sanctuaries, open borders, gay marriage, Hollywood, etc. IOW, a swamp that rivals DC. If there is one state that should have seen carnage from pot, it’s CA. The fact that its highways remained safe casts grave doubt on the OP’s case for a causal relationship.