Junior and Meghan have the same tactic when arguing. Deflection. If someone brings up a negative point about someone, instead of actually discussing THAT POINT, that specific event, they say, "You can't criticize, because this other person did something just as bad," and then try to switch the conversation to that.
Someone mentions trump's racism, and it's "But JOY wore blackface 50 years ago!" someone mentions trump's misogyny, and it's "But Whoopi defended Polanski!" and it works - because even on this board, people are talking about THOSE issues, instead of the real, current ones. It's the same thing MEghan does when defending republicans, it's the "both sides!" argument she uses, when she brings up Assange, trying to switch the topic, when she counters criticism of any republican with "but HILLARY..." She then sways the discussion to talking about those issues instead of the current one.
It's Hasselbeck all over again. I will never forget when Hasslebeck answered "what makes sarah Palin qualified to be VP?" with "What makes Obama qualified?" and then diverted the discussion to his qualifications instead. Meghan does it, trump Jr does it.
ANd I do believe that the appearance on The View was directed at publicity for Jr's book about triggering Democrats - by purposely "TRIGGERING" The View panel. It's his schtick, and you can see the smug smiles Junior and the gargoyle had when the panel was arguing with them.