Just in case you're asking legitimately and aren't the sea lion you appear you are I'll answer. They are endorsing Trump. They're effectively endorsing Trump. When one candidate says they think all striking workers should be fired and their entire ethos is the destruction of unions then not fighting against that candidate is implicit and tacit support. That's why the head of their Union appeared at the RNC. That's the message they're sending you and voters. You need to learn when it comes to politics to look a little more critically at things and not accept the very face value.
They are class traitors through and through. Just like they were when they endorsed Reagan.
Good to see Rogers remembered that Wilson existed.