Clearly he has fallen to the dark illogical side of the dork.

Tell him he's broken the Prime Directive of being a good uncle.

He needs to grow up and learn to accept differences of opinion. You should put him in time out while you play Star Wars for your daughter in the next room.

Just move your daughter away from him and bid him "live long and prosper".

more like "live long and f#ck off"

Human emotion. Fascinating.. ;-)

This goes way beyond immaturity. That's just stupid... Everyone knows Star Wars is clearly superior.

There exist people who actually think star trek is better than star wars?

Yeah, there are. Not everyone likes Star Wars and not everyone likes Star Trek. I love Star Trek but not Star Wars. The difference between me and this d-bag uncle? I'm not going to argue with or belittle anyone who has difference of opinion than I and thinks Star Wars is better. Everyone is allowed to have their opinions, especially innocent six year olds. OP, your uncle is a huge d-bag and I hope you told him off for your stepdaughter's sake.

Trust me when i say my uncle has a new found respect for star wars. I showed him the power of the dark side when i stood up for my daughter.

I have absolutely no interest in either but if I was forced to watch one I would definitely choose Star Wars. Star Trek just seems so bad

It's called an opinion, look it up

@OP: Did you force-choke him?

Of course. I prefer Star Trek and absolutely loathe Star Wars. I'd never insult anyone for liking Star Wars though. I just find it an incredibly boring concept and the Star Wars fans I've known have largely been terrible people like the uncle. But not all Star Wars fans are like that, the same with Star Trek fans.

I really hope you stopped him cos that kinda shit can scar a child for life. Also it makes you an awesome stepfather

And this is when you tell your uncle in blunt terms that he can kiss interaction with your part of the family good bye, and make it known to the rest of the family that he thinks verbally attacking a child over a difference in opinion on media is appropriate. And if they try to push the blame on your daughter, you cut ties with them because it will only go downhill from there.

Scotty, beam him up!

He's right.
But even if she was an adult, that's no excuse for his behavior.

Well, I mean Star Trek is superior (as long as we're talking TOS, TNG, and DS9), but that's a weird reason not to like someone, especially a child.