maybe a good analogy for why people vote against their own best interests?

[Kaleva]

71. It's often wise to read the source rather then just an interpertation of the source.

An excerpt from the study conducted by Emory University political scientists Gregory Martin and Josh McCrain

"On the other hand, it is also possible that declines in local coverage are primarily demand-rather than supply-driven. In an age of increasing nationalization of elections (Hopkins,2018; Abramowitz and Webster, 2016; Jacobson, 2015), dedicated coverage of local politics may no longer be as valuable to citizens as it once was. The more closely do local elected officials’ positions align with those of their national party, the more does information about national party leaders suffice for most readers’ purposes and the less incremental value is there in coverage of local figures. The long-term decline in local coverage may thus simply reflect adaptation by the news industry as a whole to changes in audience tastes for political information. "

http://joshuamccrain.com/localnews.pdf

And here's another interesting tidbit from the study:

"The cost efficiencies of consolidating news production appear to be large enough to make up for net losses in viewership it induces. "

So even if their is a decline in viewership, the savings in costs more then makes up for it and there is greater profit.

Again, I stress the importance of reading the actual source oneself rather then relying on someone else's biased interpretation of it.