What is the origin of the idiom "like turkeys voting for Christmas" and when to use it?

The idiom "like turkeys voting for Christmas" originated from the tradition of eating turkey as a Christmas meal, where turkeys are essentially voting for their own demise. The idiom is often used in a political context to describe situations where a group of people support a policy or politician that will ultimately harm them, such as when low-income voters support tax cuts for the wealthy or when workers support policies that lead to job losses.