So, would you care to actually engage with the “whole point of the thread”? So far, you’ve made two posts. In one, you dismissed one poster as threadshitting and advanced two unsupported hypotheses while ignoring all of the posts discussing why party registration doesn’t necessarily reflect voting behavior. The other consists entirely of dismissing my post engaging with you as bullshit and telling me to get the fuck out of the thread. Which I won’t be doing.
Here’s some actual facts from the Kentucky State Board of Elections [PDF]:
Total turnout statewide by registered Democrats was 59.4%. Total turnout statewide by registered Republicans was 64.4%. Total turnout by voters with other party registrations was 45%.
So, Republicans had a turnout advantage, but not nearly enough of one to explain Trump’s margin. And pre-election polling consistently predicted a similar margin of victory to what Trump actually achieved, and entirely inconsistent with a model of voting behavior based solely on party registration. It is, of course, possible that some voters that consider themselves Republican register as Democrats to vote in that party’s primaries - see @DoctorJ’s post upthread. But given how red Kentucky is, even county by county, that doesn’t seem likely as an explanation to me. Again, as numerous posts in this thread have explained, party of registration is a lagging indicator that simply isn’t very useful in predicting actual voting behavior in a Presidential election.