Scientific consensus can be divided and misguided but generally indicates a single direction. The main reason the left avoids leaving important decisions to st

Scientific consensus can be divided and misguided but generally indicates a single direction. The main reason the left avoids leaving important decisions to states is that state representation is biased toward the people living outside of cities. Even when they're the minority with lower economic output they have a bigger say in how a state is represented in state and federal congress. Republicans dominate state governments and have non-urban demographics wrapped up right now, so of course democrats will prefer to not give them more power.