Ok, again, I mostly agree. Except Dems did go right this election. They had Republicans advocating for them. They lost. The most damning thing an election campaign can experience is losing. Dems may learn from that courting republican votes lose them elections. Their bank accounts will suggest they do the same thing again.
Secondly, I don't see the "no genocide" vote being a left Vs right issue. There's plenty of genocides to go around lefties like myself can "no true Scotsman" but history is riddled with genocides.
I don't know how much I can tell you this, or how I can get it through to you. Blame the Leaders. We don't blame Steve from the factory floor for Boeing's doors falling off.
We know how people actually play the "ultimatum game" and it isn't how game theory says they should. You have to give them enough for them to accept your offer. Offering a penny out of £100 makes them reject your offer even though you'd both be the better for it. That's the world we live in.