The other day I was watching the Liverpool/Barca tie in the Champions League and the Liverpool fans were ripping Suarez, a formerly beloved player of theirs, to pieces for playing exactly the way he did for them during his time with the club.
Obviously there was a lot of back and forth online and accusations of hypocrisy were tossed around, but what struck me was the fact that a decent number of Liverpool fans simply said something along the lines of "Well, yeah. He doesn't play for us anymore" and that was that. There was no real way to respond because they'd already admitted to being hypocritical and they felt that it was perfectly logical to be so.
You can see it with Trump and his supporters too. He's attacked all manner of people for all manner of things which he himself does all the time yet it doesn't seem to matter. They don't really care about the action at all, just the person carrying it out.