The West is so overrun with morons there is almost nobody left who is bright enough to even know what is happening or why.
The trickle-down effects that are the natural consequences of a cooling sun are simply too abstract for a generation raised on television and music videos. They can look right at it but they can't see it. The brains just aren't there anymore.
War, famine, disease, anarchy.
The reason the effect is not instantaneous is because of the water vapor in the atmosphere and in the Earth's oceans. Notice how a hot water bottle will retain some heat many hours after the temperature around you has declined to lethal, freezing levels? That's the same phenomenon down here.
The Sun has been snuffed out. It's taking a while for the oceans and the air to cool completely in response. When they reach equilibrium with solar output, it's going to make THE DAY AFTER TOMORROW look like a children's animated Christmas special.
Lots of people other than me have known that this was coming for a long time
The Russians know itz coming and this is part of their nuclear war fighting strategy. They are expecting conflicts over resources and they recognize they have to be able to repel an American invasion of the Caspian fields.