I was never so keen on WWE having a "celebrity wing", but if they have to have that, then Trump belongs there. Other than Mike Tyson and Mr. T, I can't think of another celebrity that has made more of an impact in WWE than Donald Trump. These three actually helped WWE generate a lot of PPV buys. In fact, off the top of my head, I can't think of any other celebrities that would deserve a hall of fame induction, if it were a legit hall of fame.
The other celebrities in it are a joke though, which makes me think that the whole idea of a celebrity wing is a joke. Drew Carey is in for being in a Royal Rumble for a few minutes? Pete Rose is in for being available to be tombstoned by Kane a few times? William Perry is in for being the Wrestlemania 2 battle royal? By these standards, pretty much every celebrity that has made an appearance in WWE should be deserving of being in the hall of fame.