People are going to have to figure out how to not sweat the broccoli example. Do I really care if someone likes broccoli? No. But it's an off-the-cuff example of something someone may not like because they've never had it well-prepared - their experiences are limited to poor renditions of the subject, an issue that certainly can occur in particular elements of games.
Ultimately, what someone likes to eat isn't my concern. Unless I'm the cook, it doesn't affect me. But if the GM is banning things I like simply because he doesn't like them, it may affect whether I like the game and whether I play that game or not. As I've said, whether the GM excludes something he doesn't like is his prerogative, but I think he has to be willing to countenance push-back from players, should be willing to examine his own reasons for not liking something, and keep an open mind about his players' preferences as well - including rethinking an exclusion.
No actually the GM shouldnt have to put up with that immature behavior from players.
If the player was so high-strung about having X that the GM doesn't like, then they should have at the onset not played in that game, rather than sit there all along planning revenge to disrupt the game at some point.
The GM DID examine his reason ergo he would have not come to the conclusion he did not like Thing X to begin with.
Maybe the players should learn to be open-minded about different types of games rather than getting their way to the point of planning confrontation?
Broccoli was a PERFECT example, as it illustrates that one should not try to force change upon another's personal preferences UNLESS they are asked to explain a reason why they should like broccoli.
If you aren't asked for your opinion, sometimes maybe you just shouldn't give it.
The broccoli example also fits perfectly to show how you can use the social cue to know when to stop pushing a subject or topic. Someone says they don't like it and you ask why and they get a little more upset or displeased with your continued asking, then you have pushed to far and it is time you back off rather than pressure anyone into anything.
Broccoli is a good example as it shows how kids that don't like it had been forced ot try it and there can be all sorts of resentment to that. So rather than use bad behavior in order to try to get someone to see your view, wait until they ask for your view and are ready themselves to discus it no matter what
IT is, and take the social cue given when they are given to stop trying to push a subject that is not welcome for you to open a discussion about.
This may sound silly about a GM not allowing something in a game because they "don't like it', but it really is the same thing as a parent badgering a kid to try to eat broccoli.
There are better ways and more socially accepted ways of suggested your view than pushing the matter, such as mentioned in the fragmentation thread in regards to the 4th edition teaser video, another thread about "work to get the consumer to accept the change",the alignment threads EVERYWHERE, etc etc etc.
You are actually belittling someone else's right to choose for themselves when you question their choices, unless you were already in a discussion of which the topic was based around those choices. Like someone asking you to tell them how broccoli could be better, as opposed to you just trying to tell them when they aren't interested in hearing you view as they are NOT required to listen to your opinion.
Which may just prove how in today's world people think too highly of themselves and the importance of their opinions being "shared" with others.
We on forums such as these open ourselves up to the discussions by participating in the threads containing them, but it doesn't mean everyone is looking for someone else to change their mind. Some threads have that as the request, while others are just wanting to understand another's opinion or view, but there are many that just want to share their own views; and whether one participates or not is their own choice just like in real life those not entering the "thread" may not wish to discus that topic or hear another's view on it.
Doesn't make them close-minded at all, just means that made their own choices and decisions themselves, as is their right, and are happy with those choices.
Examples:
People not switching to 4th and chose Pathfinder.
People not liking green food.
People not liking tomatoes.
People not liking Fords.
It is funny how often people feel the need to change someone else's opinion, when that opinion is something that in no way harms themselves or another person.